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  • table - support furniture

    Article of furniture consisting of a flat, slablike top supported on one or more legs or supports.

  • table fork

    Large-size forks in a place setting, used for consuming the main course of a meal.

  • table knife

    Large size knives in a place setting, used for consuming the main meal.

  • table lamp

    Lamp with a relatively short stem making them suitable for standing on tables and other furniture. The term is especially used in reference to late 18th-century lamps designed to burn whale oil and burning fluid compounds, which generally maintain the traditional stemware divisions of top, stem, and foot and often resemble stemmed drinking glasses of the same period.

  • table spoon

    Large spoons, with a capacity three times the size of a teaspoon, used for serving or consuming foods and as a standard unit of measurement in recipes.

  • tablet

    taken for medicinal purposes

  • tablet making machine

    A machine for pressing and forming tablets.

  • tags

    Use for labels, usually of a stiff material, attached to an article by one end or otherwise loosely, and bearing some information relevant to the article.

  • tail lamp

    The red lamp displayed at the rear of the last vehicle of the train.

  • tailboard

    A gangway cover painted with the title and logo of a named passenger train.

  • tally

    A ticket or label for identification; a total score or an amount; A stick or rod, usually squared, marked on one side with transverse notches representing the amount of a debt or payment.

  • tamper (vehicle)

    An on-track machine used to compact the ballast under the sleepers.

  • tank wagon

    A vehicle with a large sealed container for carrying liquids or gases.

  • tankard

    A drinking-vessel, formerly made of wooden staves and hooped; now esp. a tall one-handled jug or mug, usually of pewter, sometimes with a lid: used chiefly for drinking beer.

  • tap - cutting tool

    Tool for forming internal screw threads

  • tap wrench

    Wrenches used to turn taps

  • tape measure

    Long, narrow, flexible strips of linen, steel, or wire-woven cloth graduated to measure distances and often stored coiled in a protective casing into which they can be rewound after use.

  • tape recorder

    Device on which sound is recorded onto magnetic tape, and may be replayed.

  • tar

    Inflammable blackish viscous liquid obtained by the distillation of wood or coal. As a constituent of cigarettes, tar is known to have cancer causing properties.

  • tattoo

    Marking the skin with a design by puncturing it and inserting pigment. On humans a tattoo is often a form of decoration, but on animals it is usually a form of marking or branding.

  • tea

    slab of compressed tea often with images moulded in relief.

  • tea can

    Used by drivers to drink tea from.

  • tea cup

    Cups, usually accompanied by a saucer, intended primarily for drinking hot tea.

  • tea strainer

    Strainer through which tea, or sometimes coffee, is poured in order to catch the loose leaves or grounds. For culinary tool which encloses tea leaves, or sometimes coffee grounds, within a cup or pot of water while the beverage brews, use "tea infuser."

  • tea towel

    Towels for drying dishes and other culinary items

  • teaching aid

    A tool used by teachers, facilitators, or tutors to help learners improve reading and other skills,or to illustrate or reinforce a skill, fact, or idea. They can often combat anxiety or boredom, as many teaching aids are like games.

  • teapot

    Covered vessels for brewing and serving tea, usually with one spout, which is often long and gracefully curved, and, on the opposite side of the vessel, one handle, and sometimes small feet.

  • teaspoon

    Small spoons, with a capacity one third the size of a tablespoon, used for stirring tea, coffee, or the like served in cups or mugs and used as a standard unit of measurement in recipes.

  • Teflon shunt

    A shunt is a passage connecting two anatomical features, for instance, an artery and a vein. Teflon is a non-stick plastic polytetrafluoroethylene.

  • telegram

    Messages sent by telegraph.

  • telegrams

    Messages sent by telegraph. GAHLM.

  • telegraph

    Any of numerous types of devices or systems that allow the transmission of information by coded signal over a distance. Many telegraphic systems have been used over the centuries, but the term most often refers to the electric telegraph, which was developed in the mid-19th century and was the principal means of transmitting printed information by wire or radio wave for over a century. It consisted of a transmitting or sending instrument and a distant receiving instrument connected by a conducting wire or other communications channel.

  • telegraph peripheral

    Components of wireless telegraphy sets, for example, printers, Morse keys, etc

  • telephone

    Instrument, apparatus, or device that convey or reproduce sounds at a distance, especially such devices in which the human voice is transmitted as by wire, satellite, or via base-station antennas as short-wave analog or digital signals. The term was used as early as the 18th century to refer to string phones (cups joined by a string), but the modern device is attributed to Alexander Graham Bell, who patented it in March 1876. That original telephones worked on the principle that sounds of speech are complex vibrations in air, which can be transferrable to solid bodies and in electrical impulses in conducting metals.

  • telephone exchange

    The office or central station of a local telephone system, where the various lines are brought to a central switchboard, and communication between subscribers is effected; sometimes applied to the switchboard itself, as in an ‘automatic exchange'

  • teleprinter

    Printers that print complete pages of output in one cycle

  • telescope

    optical instruments using mirrors, lenses or both, which produces a magnified image of distant view. There are three main types of telescope; namely refracting (dioptric), reflecting (catoptric) and the combination of the former types known as catadioptric.

  • telescope - Cassegrain

    A type of reflecting telescope with a parabolic primary mirror, and a hyperbolic secondary mirror that reflects the light back down through a hole in the primary. Folding the optics makes this a compact design.

  • telescope - catadioptric

    Type of telescope, an optical instrument that produces an enlarged image of distant views, which uses both mirrors and lenses to provide magnification.

  • telescope - Dall Kirkham

    A type of reflecting cassegrain telescope that uses a concave elliptical primary mirror and a convex spherical secondary. Created by Horace Dall in 1928 it took its name from an article published in Scientific American in 1930, following discussion between amateur astronomer Allan Kirkham and Albert G. Ingalls, the magazine editor at the time.

  • telescope - Galilean

    A type of refracting telescope in which eye-lens is divergent (concave), giving an erect image. It is short than an astronomical telescope equal magnifying power

  • telescope - Gregorian

    Telescope consisting of two concave mirrors; the primary mirror (a concave paraboloid) collects the light and brings it to a focus before the secondary mirror (a concave ellipsoid) where it is reflected back through a hole in the centre of the primary, and thence out the bottom end of the instrument where it can be viewed with the aid of the eyepiece.

  • telescope - Newtonian

    The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton (1643-1727), using a concave primary mirror and a flat diagonal secondary mirror. He first constructed it in 1669

  • telescope - reflecting

    A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image.

  • telescope - refracting

    A refracting or refractor telescope is a dioptric telescope that uses a lens as its objective to form an enlarged image.

  • telescope - Schmidt Cassegrain

    A type of catadioptric telescope that combines a folded optical path with a corrector plate to make a compact astronomical instrument. As in the Schmidt camera it uses a spherical primary mirror and a Schmidt corrector plate to correct for spherical aberration. From the Cassegrain, it inherits the convex secondary mirror, perforated primary mirror, and a final focal plane located behind the primary.

  • telescope - sighting

    A refracting telescope with an index or graticule used for sighting guns.

  • television camera

    A high-end device for recording electronic moving images (as opposed to a movie camera, that records the images on film).

  • television receiver

    Devices that convert incoming television signals into the original images and their associated sounds.

  • tellurometer

    A type of rangefinder employing microwaves (frequency modulated) to measure distances by timing reflected beamed signels.

  • tenaculum

    An instrument consisting of a fine, sharp hook attached to a handle, and used mainly for taking up arteries, and the like

  • tensometer

    A device used to evealuate how much a substance stretches under stress.

  • tent - portable building

    Collapsible shelter of canvas, skin, plastic, or other flexible and water-repellent material stretched and sustained by poles, usually secured by ropes to pegs in the ground.

  • terminal illness

    An advanced stage of a disease that has no known cure and is fatal.

  • terra sigillata

    A form of clay from the Greek islands of Lemnos or Samos. Until the 1700s, terra sigillata was used as a medicine and seen as a general cure for bodily impurities.

  • terrestrial globe

    Refers to spheres that bear a map of the Earth on their surface. They were first devised by the ancient Greeks, who had calculated that the Earth is a sphere. Modern terrestrial globes are typically mounted on an axle that permits rotation and is tilted 23.5 degrees from the vertical in order to simulate the inclination of the Earth relative to the plane in which it orbits the Sun.

  • terrestrial telescope

    Type of telescope, an optical instrument that produces a magnified image of distant view, which gives an upright image in the eyepiece. These are usually refracting telescopes, often of the Galilean optical design with three or more draw tubes for compact storage, typically used in the field. They can include catadiotric or othe reflecting designs.

  • test topic

    test term

  • test tube

    Hollow cylinders of thin glass with one end closed. Test tubes are used for chemical and biological experiments and analysis.

  • testimonial

    Documents containing affirmation of person's character or the value of a thing. Specifically, written declarations stating an individual's achievements or the usefulness of a product or service, such as a letter of endorsement.

  • tetanus

    An acute infectious disease, affecting the nervous system. Infection generally occurs through contamination of a wound. Symptoms include a locked jaw, arching of the back or neck and the inability to urinate.

  • thalidomide

    A drug that was prescribed in the 1950s and 60s as a sedative for pregnant women. Thalidomide was supposed to relieve symptoms of morning sickness. However, it led to birth defects among babies, and was banned. Since 1998, the drug has been avaliable to treat other conditions, but its prescription is highly regulated.

  • The Incas

    The largest empire in Pre-Columbian America. Its origins lie in the city-state created by the Quechuan people based in the high Cuzco valley in Peru from the 1100s. The Incas conquered large areas of South America during the 1400s. The empire was itself conquered by the arrival of Spanish adventurers in the following century.

  • theatre cap

    worn by nursing and surgical staff during operations

  • theodolite

    Precision surveying instruments for measuring horizontal and sometimes vertical angles and consisting of a sighting telescope mounted so that it is free to rotate horizontally and vertically and accompanying graduated scales to measure the angle of rotation.

  • theodolite prism target

    Device used in conjunction with a theodolite in order to work out an angle.

  • theriac

    An ointment used as an antidote to snake venom or other poison.

  • thermal cycler

    A machine used for copying parts of DNA via the process of Polymerase Chain Reaction (PCR).

  • thermocouple

    Device that can generate an electrical current proportional to the amount of heat to which it is exposed. Thermocouples are a widely used temperature sensor in electrical engineering and industry.

  • thermometer

    Instruments for measuring temperature by utilizing the variation of the physical properties of substances according to their thermal states..

  • thermometers

    Instruments for measuring temperature by utilizing the variation of the physical properties of substances according to their thermal states. STEIN.

  • thermopile

    An instrument of extreme sensibility, used to determine slight differences and degrees of heat

  • Thomas splint

    A splint used to immobilise leg fractures to allow healing. It has a ring at the hip connecting to a cross-piece at the foot.

  • thorn

    A modified plant organ, especially a stem, that is stiffened and terminates in a sharp point. Has been used historically for medicinal purposes such as variolation or vaccination

  • thread gauge

    Device for measuring the pitch, major and minor diameters, lead, straightness, and thread angles of screw threads.

  • throat swab

    a wad of absorbent material usually wound around one end of a small stick and used for applying medication or for removing material from an area

  • thrush

    A yeast infection that affects the mouth, gut and vagina. Usual symptoms include redness, soreness and itching.

  • tic douloureux

    A stabbing pain in the forehead, nose, and scalp, caused by a disorder of the trigeminal nerve (a major nerve in the face).

  • ticket

    A printed piece of paper, card or a metal token which shows that the bearer has paid to travel on the train.

  • ticket dating press

    A device for applying the date of issue to pre-printed tickets.

  • ticket issuing machine

    A machine for issuing tickets from blank paper or card roll; may be conductor/guard operated.

  • ticket issuing machine component

    Components for a machine for issuing tickets from blank paper or card roll.

  • ticket nipper

    A hand-held device for cancelling tickets by removal of a small section of the ticket.

  • ticket nippers

    A hand-held device for cancelling tickets.

  • ticket rack

    A device for retaining tickets in order for easy removal and ensuring tickets are not issued out of sequence.

  • ticket wallet

    A device used by passengers, usually given by the railway operator for retaining season ticket, travelcard or pass.

  • tide gauge

    An instrument or device to measure the rise and fall of the tides

  • tie pin

    Pin that directly tacks a pin onto a shirt.

  • tile

    Flat, solid, and relatively thin durable material generally used for roofing, flooring, or wall and ceiling covering; often rectangular or squarish in shape. For fired clay materials of varying shapes and thicknesses and with various uses in addition to covering, prefer "ceramic tile."

  • time books

    Books in which hours spent on a job by workers are recorded. GAHLM.

  • time sheet

    A manual document that records the times an employee starts and finishes duty.

  • timepiece

    Device for measuring and recording the passage of time.

  • timetable

    A document showing the times of train departures and arrivals at stations and passing points, en route (cf. the Working Timetable).

  • tin

    Use for the pure metallic element having symbol Sn and atomic number 50; a soft, pliable, silvery white metal. Use also for this metal as processed and formed, usually in combination with other substances, to make various objects and materials.

  • tin - can

    Can made of tin plated metal, usual iron or steel.

  • tincture

    A solution of a medical substance (often a herb or natural plant material) in alcohol. Tinctures were commonly used as alternative medicines in the 1800s.

  • tine test

    a tuberculin test in which a disk with several tines bearing tuberculin antigen is used to puncture the skin; development of a hard red area indicates past or present exposure to tubercle bacilli and the need for further testing

  • tipstaff

    A staff with a metal tip or emblem, carried as a sign of office, now largely ceremonial.

  • tireford

    used in trephination

  • toast rack

    Racks with vertical partitions for holding and serving several (usually four to eight) slices of toast on edge.

  • tobacco box

    Small box used for carrying smoking or chewing tobacco, especially those with unattached fitted covers. For similar box having a hinged lid instead of an unattached, fitted cover, use "snuffbox."

  • tobacco tin

    trial term

  • tobacconist

    A person who deals in tobacco and smoking supplies.

  • toe jack

    A device used to lift heavy equipment, useually small in size.

  • toilet accessory

    Piece of equipment that is associated with the toilet or personal hygiene routine such as toothbrushes, hairbrushes, combs etc

  • token

    Designates a substitute for money that move within a limited universe, usually not in general circulation, that may be exchanged for particular goods or services, and are made from hard substances whose intrinsic value is always less than the stated value. The best known example, the trade tokens of Strachan and Company, were issued in South Africa in 1874 and are today recognised as that country's first widely circulating indigenous currency.

  • tomography

    Type of radiography which uses a rotating detector and source of radiation to gain an image of a cross-section of the body. Device is called a tomograph and the end result is called a tomogram.

  • tongs

    Any of numerous devices used for taking hold of objects, consisting commonly of two metal pieces that are joined at one end or near one end by a pivot or spring, forming the two jaws which are used for gripping.

  • tongue écraseur

    Instrument used for tongue excision (removal by cutting)

  • tongue scraper

    An instrument to remove 'fur' off the tongue.

  • tongue-depressor

    blade that is used to depress the tongue to allow for inspection of the mouth and throat

  • tonoscillograph

    for measuring blood pressure

  • tonsil guillotine

    Historical instrument once used for the removal of tonsils.

  • tonsillectomy

    The surgical removal of the tonsils.

  • tonsillitis

    Inflammation of the tonsils due to bacterial or viral infection. Tonsillitis causes a sore throat, fever and difficulty in swallowing.

  • tonsils

    trial term

  • tool box

    Boxes or cases, usually lidded, in which tools are kept.

  • tools

    Use for objects, especially those hand-held, for performing or facilitating mechanical operations.

  • tooth cavity

    Holes in the two outer layers of a tooth called the enamel and the dentin. Small cavities may not cause pain, and may be unnoticed by the patient. Larger cavities can collect food, and the inner pulp of the affected tooth can become irritated by bacterial toxins, foods that are cold, hot, sour, or sweet causing toothache. Also referred to as caries.

  • tooth powder

    A powder used for cleaning the teeth. Tooth powders were in general use in 1800s Britain. Most were homemade, with chalk, pulverized brick, or salt as ingredients.

  • tooth pulling

    The removal of a tooth from the mouth. Extractions are performed for a wide variety of reasons, including tooth decay that has destroyed enough tooth structure to prevent restoration. Extractions of impacted or problematic wisdom teeth are also routinely performed.

  • tooth shade guide

    A set of pictures that allows a dentist to identify the shade of their patients' teeth. This information is used by the dentist to create an artificial tooth that is a similar shade.

  • toothache

    Pain in a tooth or in the teeth

  • toothbrush

    Small brushes, with long handles, for cleaning the teeth.

  • toothpick case

    A case used to hold toothpicks

  • touchpiece

    Touchpieces are coins and medals that have attracted superstitious beliefs. Such pieces were believed to cure disease, bring good luck, or influence people’s behaviour.

  • tourniquet

    An apparatus designed for the compression of the vessels of the limb. A loosely applied tourniquet can reduce venous blood flow out of a limb. A tightly applied tourniquet can lessen arterial blood flow into it.

  • towel rail

    Used for hanging towels

  • toxin

    A poisonous substance.

  • toy - recreational artefact

    Toys that provide visual stimulus and entertainment through various optical principles, such as persistence of vision, projection and other optical effects and demonstrations.

  • toys (recreational artifacts)

    Use for objects of delight, playthings that give pleasure during idle moments and are often small representations of something familiar.

  • trachea

    The windpipe: the part of the air passage between the larynx and the main bronchi.

  • tracheotomy

    A surgical procedure to make an opening directly into the windpipe.

  • tracheotomy set

    used to perform tracheotomy

  • track diagram

    A diagram displayed in the signalbox showing the track layout with all relevant signalling features marked, together with their corresponding lever numbers, etc.

  • track gauge

    An instrument for measuring the distance between the inner faces of the railway track.

  • track recording trolley

    A railway vehicle equipped for testing for defects in the track.

  • tracks

    Use for the assembly of rails, ties, and fasteners over which rail vehicles travel.

  • traction

    In orthopaedic medicine, traction refers to the set of procedures for straightening broken bones or relieving pressure on the skeleton.

  • traction apparatus

    Apparatus for use in traction - the application of a pulling force, especially as a means of counteracting the natural tension in the tissues surrounding a broken bone (see countertraction), to produce correct alignment of the fragments.

  • trade

    Refers to the willing exchange of goods. Also defined as the activity of buying, selling, or bartering commodities.

  • trade card

    Printed sheets, and later cards, bearing tradesmen's advertisements, often including an engraved illustration; produced from the 17th through the 19th century. Cards made later often included the name and address of a business concern and the name of its representative, and intended more for information than for advertising, use "business cards." For cards made later and distributed for advertisement, use "advertising cards," and for those made later and issued primarily to be collected, with or without advertisements on them, use "collecting cards."

  • Traditional Chinese Medicine

    Traditional Chinese Medicine (TCM) is a medical tradition originating in China, but now used worldwide. Treatments include herbal medicine, massage and acupuncture, which are combined to create a therapy tailored to the patient.

  • traditional medicine

    Used in the West for sets of health beliefs and practices that developed within the culture of a particular ethnic or geographic group of people, distinct from modern Western medicine. Commonly includes herbal and homeopathic remedies, religious or spiritual ritual, and an holistic approach to patients.

  • train diagram

    A diagram showing the formation of a particular train, including the vehicle numbers and the layout of the carriages.

  • train set

    A formation of (usually) passenger vehicles.

  • tram engine

    A locomotive designed with covers over moving parts for use on or adjacent to the public highway.

  • tramcar


  • trammel

    An engineer's trammel is a device similar in shape to a plumb bob. It is used as a compass pivot when scribing circles and ellipses. A trammel is often used by metalworkers and carpenters when marking out radii on a work piece from a blueprint when an arc is too large to be drawn with a compass.

  • tramway

    A term used in the early nineteenth century for the earliest forms of conventional railway.

  • tramway truck

    A wagon used on a tramway system.

  • transistor

    An electrical device used to amplify electrical signals.

  • transit theodolite

    Precision surveying instruments for measuring horizontal and vertical angles and consisting of a sighting telescope mounted that is free to rotate horizontally and vertically right through its forks

  • transplant

    Surgical operation to introduce organ or tissue from one person (the donor) to another (the recipient). It may also refer to the transfer of tissues from one part of a person's body to another part of the same person's body.

  • travel chart

    A guide, used by railway passengers, depicting a specific route and providing information on places of interest.

  • travelling crane

    A crane mounted on a truck, used for minor breakdowns and accidents and also for loading and unloading in sidings, etc. where no fixed crane exists.

  • travelling hand crane

    A hand operated crane mounted on a wagon chassis allowing it to be moved within or between yards to the exact point at which it is needed.

  • travelling post office

    A carriage exclusively devoted to the carriage of mail in which letters are sorted during the journey to save time.

  • tray

    Open, variously shaped containers of wood, metal or other rigid material with a flat bottom and a low rim for holding, carrying, or exhibiting articles.

  • tremor

    An involuntary quivering or trembling.

  • trench foot

    A medical condition caused by the prolonged exposure of feet to water. Affected feet become numb and swollen. Untreated trench foot leads to gangrene and amputation.

  • trephination

    The removal of a circular piece of the top of the head. This is done using a sharp implement or circular saw, and was common in Neolithic times. It is thought that the aim was to release evil demons or spirits from the body in the hope this would cure the person of their illness.

  • trephination set

    Instrument set to perform trephination (Removal of a circular piece ("button") of cranium by a trephine)

  • trephine

    An instrument for trepanning, being an historical advancement on the trepan. It is a circular or cylindrical saw, with a handle like that of a gimlet, and a little sharp perforator called the center pin.

  • trestle plate wagon

    A wagon designed to convey large steel plates, which would otherwise be out of gauge, at an angle.

  • trial lenses

    A set of lenses that were used to diagnose problems with vision. Each lens is slightly different and would be held in front of the patients eye. Modern day opticians continue to use trial lenses.

  • trichinosis

    Trichinosis is an intestinal and tissue infection of humans and other mammals. Infection occurs through the consumption of infected meat (usually domestic pork) that carries the encysted larvae of T. Spiralis. Common symptoms include: diarrhoea, muscle pains, fever, dehydration and swelling around the eyes. Myocarditis (heart infection), pneumonitis (lung infection) and encephalitis (brain infection) can also occur in advanced cases.

  • triple valve

    The air brake valve controlling the admission and exhaustion of air to and from the brake cylinders.

  • trocar

    An examining instrument with a triangular point, used for exploring tissues or for inserting drainage tubes, as in drospy.

  • trolley

    Use for a wheeled cart or stand used for moving heavy items.

  • trophy

    Objects taken as spoils in war or in hunting, or awarded as prizes for victory in contests; typically include such things as armor and weapons taken from an opponent in battle, stuffed and mounted skins, heads or other portions of a slain animal, and elaborate silver pieces awarded as contest prizes.

  • tropical disease

    Diseases that are unique to or common in tropical areas. They are often water- or insect-borne. Examples of tropical diseases include leprosy, malaria, sleeping sickness and yellow fever.

  • tropical medicine

    Tropical medicine is the branch of medicine that deals with health problems that are more widespread in tropical and subtropical regions.

  • trousers

    Exposed bifurcated garments which extend from waist or hips to the ankle or sometimes to the knee or just below.

  • truncheon

    Short, heavy clubs consisting of a stick, usually wooden, with a handle but no head, typically carried by policemen on patrol or as riot control equipment

  • trunk

    Rigid, boxlike containers, usually large and often reinforced, for packing clothing and other personal gear or articles for travel or storage.

  • truss

    A bandage or apparatus used by hernia patients to support the affected parts and hold them in the correct position.

  • ts'ien tung

    A process of treatment specific to Traditional Chinese Medicine. Eighteen bamboo sticks are inscribed with a different number. A worshipper at the God of Medicine Temple shakes the container while praying until one of the sticks falls out. The stick is taken to a counter for a prescription matching that number which is dispensed at a pharmacy.

  • t-square

    A rule having a short, sometimes sliding, perpendicular crosspiece at one end, used by drafters for establishing and drawing parallel lines.

  • tube

    A cylindrical or oval profiled container used to contain a product with a semi-liquid, jelly, cream or paste-like consistency. Used for food, pharmaceutical, cosmetic or chemical products, for example, ointment, toothpaste, make-up or paint. Usually made of plastic or aluminium, threaded at one end and sealed with a cap and completely sealed at the other. The tube can be hermetically sealed and the contents for pharmaceutical or other preparations are near germ-free due to the high temperatures used during production.

  • tube wagon

    A wagon primarily designed for the carriage of iron or steel tubes but used for other long loads and general merchandise when appropriate.

  • tubercles

    A round nodule, small eminence, or warty outgrowth found on bones, skin, or within the lungs in tuberculosis.

  • tuberculin

    A protein extracted from the tuberculosis causing bacterium. It is used in tests to determine if a person has been exposed to the bacteria and is in danger of coming down with the disease.

  • tuberculin tine tester

    used in the tine test

  • tuberculosis

    An infectious disease that is caused by a bacterium first identified by Robert Koch in 1882. The disease usually affects the lungs first, and is accompanied by a chronic cough.

  • tumbler - drinking glass

    Drinking vessels without a stem, foot, or handle and traditionally having a rounded bottom; also includes similar forms with heavy, flattened bottoms.

  • tumour


  • tunnel inspection coach

    A railway carriage used for tunnel inspections.

  • tusk

    Large protruding incisor tooth, such as is found on elephants and walruses, composed primarily of dentin. Tusks are used by humans to produce ivory.

  • twin lens reflex camera

    A camera which has two lenses of the same focul length. One is used for viewing and focusing and the other is used for exposure.

  • twins

    two individuals who are born at the same time and of the same parents via the same pregnancy. Twins can be monozygotic (identical) or dizygotic (non-identical, and the most popular form of twins)

  • typescript

    Copies of a work in typewritten form, as distinguished from those in printed or handwritten form.

  • typewriter

    Machines for writing in characters like those produced by printers' types, by which steel dies strike a paper through an inked ribbon.

  • typhoid fever

    An acute infection of the digestive system, resulting in general weakness, high fever, rash, chills and sweating. It is transmitted through food or drinking water contaminated by the faeces or urine of patients or carriers.

  • typhus

    A severe and often fatal infectious disease. It is transmitted mainly by body lice. Its symptoms are high fever, stupor, intense headache, and a dark red rash.

  • tyre gauge

    A tool for measuring the wear on the flange and profile of a railway wheel.

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