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  • haematology

    The study of the structure of the blood and blood forming tissues.

  • haemoglobin

    a substance contained within the red blood cells and responsible for their colour, a protein made from iron and responsible for carrying oxygen around the body

  • haemoglobinometer

    an instrument for determining the concentration of haemoglobin in a sample of blood, which is a measure of its ability to carry oxygen.

  • haemophilia

    A hereditary disease in which the blood clots very slowly, causing prolonged bleeding following any injury.

  • haemorrhage

    The medical or technical term for bleeding.

  • haemorrhoids

    A condition in which the veins around the anus or lower rectum are swollen and inflamed.

  • haemostasis

    The stopping of bleeding, either naturally or artificially.

  • hair

    The fibrous outgrowths of the skins of various animals, composed of the protien keratin, used, among other things, for making fabrics, as stuffing, and for making brushes.

  • hair slide

    Decorative bar-shaped clasp to hold the hair in place, particularly for long hair to keep it away from the face. .

  • hairbrushes

    Brushes for smoothing and styling the hair. RHDEL2.

  • hairdryer

    An electrical device for drying the hair, by blowing warm air across it

  • half model

    Models, traditionally of wood, representing half of a structure, generally a building or a ship divided vertically along a central axis, such as the mid-ship line for a vessel half-model. Used for a design presentation or for decorative purposes.

  • Hallade track recorder

    A scientific device used in a moving vehicle to instantaneously quantify permanent way defects.

  • hammer - tool

    Hand tools having a hard solid head, usually of metal or stone, set transversely on a handle. They are used for driving nails, beating, breaking, or other applications involving pounding or striking. The term may also refer to machines in which a heavy block of metal is used for the same purpose.

  • hand

    The portion of the upper limb distal to the radiocarpal joint, comprised of the wrist, palm, and fingers.

  • hand barrow

    A wheeled hand cart for transporting luggage, goods and equipment along station platforms.

  • hand tools

    Any tools which are operated by and guided by hand. PUTNAM.

  • handbells

    Bells having a handle enabling it to be held in the hand for ringing. NGDMI.

  • handbill

    A means of supplying printed information about railway services and regulations from earliest times (1840 Newcastle & Carlisle Rly).

  • handbills

    Small printed sheets usually containing a notice or advertisement intended to be distributed by hand and often doubling as posters. For small printed sheets intended for wider distribution, to the general public, use "circulars." For larger pieces, intended especially for posting, use "posters."

  • handcuffs

    Shackles for the hand, generally consisting of a divided metal ring which is locked around the wrist; usually made in pairs of rings connected by a short chain or bar.

  • handkerchiefs

    Pieces of cloth, usually square, varying in size and material, carried for usefulness or as a costume accessory.

  • handlamp

    A hand-held portable light source carried by railwaymen and used for giving hand signals in poor light.

  • handle

    The portion of, or attachment to, object that is designed to be grasped by the hand.

  • handstamp

    A stamp (usually made of rubber) for imprinting a mark or design by hand

  • hanger

    An object used to suspend another object from above, most commonly a clothes hanger

  • harbors

    Designates well-sheltered inlets of water affording protection from wind and sea and sufficient depth to allow anchorage for vessels.

  • hard hat

    Protective hats made of strengthened, rigid materials with a shock-absorbing lining, often yellow; worn in hazardous working conditions for protection and visibility.

  • hardness tester

    A broad term for an instrument that determines the hardness of another substance.

  • harness

    Any harness designed to help an animal or person move a vehicle.

  • hat

    Shaped coverings for the head having a brim and crown, or one of the two.

  • hawser

    type of rope used on ships

  • head

    The part of the body that contains the brain, organs of sight, hearing, smell and taste.

  • headboard

    A board placed on a bracket on the front of a locomotive or train showing the name of the train or the reporting number.

  • headdress

    Any element of clothing worn on one's head. especially an ornamental attire for the head worn by women.

  • headed paper

    Paper which has the senders name and, often, adress at the top of the page.

  • Heaf test

    A skin test carried out before vaccination to determine whether or not an individual is immune to tuberculosis.

  • Heaf test gun

    used to carry out Heaf tests

  • health

    State of well-being of an organism or part of one, characterized by normal function and unattended by disease. IDMB.

  • hearing aid

    A small electronic apparatus that amplifies sound and is worn in or behind the ear to compensate for impaired hearing.

  • hearse

    Wheeled vehicle designed to carry bodies to gravesites.

  • heart-lung machine

    A machine used to take over the functions of the heart and lungs during surgery. It allows a surgeon to carefully stop the heart while the vital organs continue to receive blood and oxygen.

  • heat exchangers

    Devices that transfer heat between two physically separated fluids; generally consists of a cylindrical shell with longitudinal tubes; one fluid flows inside, the other outside. DAC.

  • heating systems

    Assemblies of interrelated equipment designed to provide heat to buildings and other structures.

  • heliometer

    A form of split-lens micrometer originally devised for measuring the appparent diameter of the sun, but now employed for precision measurement of the angular separation and relative direction of two stars too far to be measured in the field of view of an ordinary telescope. Used to make the first successful parallax measurements of stars to determine their distance

  • helmet

    Any of various forms of protective coverings for the head, usually made of a hard material

  • Helmholtz pendulum

    myograph used to measure the velocity of nerve impulses

  • henbane

    A plant of the genus Hyoscyamus (Hyoscyamus Niger), a genus of poisonous plants known as the Nightshade or belladonna family. All parts of the plant are poisonous, and the leaves are used in neuralgic and pectorial troubles. It is poisonous to hens, hence the name. Also known as stinking nightshade because of the fetid odour of the plant.

  • hepatitis B

    Hepatitis B is a virus spread through the contact of bodily fluids. It is one hundred times more infectious than HIV, and can lead to severe liver damage, but there is an effective vaccine available.

  • heraldic motif

    A representation relating to heraldry.

  • herbal medicine

    the use of plant or plant extracts for medicinal purposes in order to improve the body's natural functions and restore balance. Herbal medicines are given in many forms (liquids, infusions, tablets, topical preparations, etc.) and form part of an increasing number of complementary medical therapies

  • hereditary

    Usually refers to a disease that is transmitted from parent to offspring.

  • heresy

    An opposite view to the established or commonly held belief of a religion.

  • hermetic

    A completely closed and airtight seal.

  • hernia

    A small amount of an organ or tissue bulging through an abnormal opening in the skin.

  • high chair - child's chair

    Child's chair with long legs, a feeding tray, and a footrest.

  • high frequency apparatus

    used to apply high frequency electric currents to the body for therapeutic reasons

  • hip bath

    A portable bath in which a person sits immersed up to the hips.

  • histology

    The study of the structure of tissues by means of special staining techniques combined with light and electron microscopy.

  • HIV

    Human Immunodeficiency Virus (HIV) is a virus that weakens vital cells in the immune system, and leads to AIDS. There are two strands: HIV-1, which leads to immunity suppression; and HIV-2, which is not as potent and is only common in West Africa. HIV is spread through direct contact with bodily fluids.

  • HIV test

    HIV tests are used to detect the presence of the human immunodeficiency virus in serum, saliva, or urine. There usually a window time of 22 days (average) between infection and the time that the test can detect infection. There are a wide variety of types of test.

  • Hodgkin's disease

    A human cancerous disease of lymph tissue that appears to originate in a particular lymph node and later spreads through the lymphatic system, the network of capillary vessels in the human body. Symptoms include swelling of the lymph nodes, weight loss and fever. It occurs mostly in individuals between the ages of 15 and 35 and can be successfully treated. Lymph nodes are organs found throughout the body. They contain white blood cells and help the immune system to function correctly.

  • holism

    The theory that parts of the body cannot be explained without reference to the whole body.

  • hook - fastener

    Bent or curved devices used for suspending or fastening objects or for attaching objects to a surface.

  • hopper wagon

    A wagon with hinged base allowing load to fall out quickly.

  • hormone

    A substance produced in one part of the body which passes into the bloodstream and is then carried to other (distant) organs or tissues, where it acts to modify their structure or function

  • horn

    A hard, projecting, and usually pointed organ, growing upon the heads of certain animals, especially. Of the ruminants, as cattle, goats, and the like. The hollow horns of the Ox family consist externally of true horn, and are never shed.

  • horn cup

    cup drinking vessel made of animal horn

  • horoscope

    An observation of the sky and the configuration of the planets at a certain moment, as at the instant of a person's birth; hence, a plan or scheme of the twelve houses or twelve signs of the zodiac, showing the disposition of the heavens at a particular moment.

  • hors d'oeuvre fork

    A small fork, used for eating hors d'oeuvre

  • hors d'oeuvres knife

    A knife used primarily for eating hors d'oeuvres

  • horse brass

    Brass plaque used for the decoration of harness gear, especially for shire and parade horses. Used since antiquity, they were especially popular in England during the 1800s.

  • horse hauled stock

    Railway vehicles specifically intended to be drawn by horses.

  • hospital

    An institution providing health care for individuals. This usually takes the form of medical and surgical treatment and nursing care for ill or injured people

  • hospital bed

    A piece of furniture used for sleeping on. Usually a metal or wooden framework with a mattress and coverings

  • hospital ward

    A division of a hospital

  • hot-water bottle

    A container usually made of rubber, filled with hot water especially to warm a bed.Containers for warmth in bed were in use as early as the 16th century. The earliest versions contained hot coals from the dying embers of the fire, and these bed warmers were used to warm the bed before getting into it. Very soon after this, containers with hot water became used. Use of hot water bottles declined in the 20th century as homes became better heated, and recently due to the increase in use of electric blankets.

  • human hair

    used to define human remains as part of the NMSI/SMG human remains policy (from April 2007); Other terms used are 'blood' and 'human remains'

  • human heart

    a hollow muscular cone-shaped organ, lying between the lungs, with the pointed end (apex) directed downwards, forwards, and to the left. The heart is about the size of a closed fist. Its wall consists largely of cardiac muscle (myocardium), lined and surrounded by membranes (see endocardium, pericardium). It is divided by a septum into separate right and left halves, each of which is divided into an upper atrium and a lower ventricle . Deoxygenated blood from the venae cavae passes through the right atrium to the right ventricle. This contracts and pumps blood to the lungs via the pulmonary artery. The newly oxygenated blood returns to the left atrium via the pulmonary veins and passes through to the left ventricle. This forcefully contracts, pumping blood out to the body via the aorta. The direction of blood flow within the heart is controlled by valves.

  • human remains

    term created as part of the NMSI human remains policy (from April 2007); Other terms used are 'blood' and 'human hair'

  • human skin

    the outer covering of the body, consisting of an outer layer, the epidermis, and an inner layer, the dermis. Beneath the dermis is a layer of fatty tissue.

  • humours

    The fluids of the body whose balance is essential to well-being. They are blood, choler (yellow bile), phlegm, and melancholy (black bile). The system of the humours was closely related to the theory of the elements by the Ancient Greeks (especially Hippocrates), who were the first society to widely embrace the theory and apply it to medical practice. In Ancient Roman culture, the theory of the humours was embraced by Galen. During the neo-classical revival in western culture, the theory of the humours was a dominant form of medical practice. Its legacy in the form of activities such as blood-letting continued in England into the eighteenth century.

  • hunting trousse

    a case for small instruments used for hunting equipment

  • hydrometer

    An instrument for measuring the density of liquids.

  • hydrotherapy

    the use of water in the treatment of disorders, now restricted in orthodox medicine to exercises done in remedial swimming pools for the rehabilitation of arthritic or partially paralysed patients.

  • hygiene

    The science of health and how to maintain it. A condition or practice which promotes good health. The definition varies widely and differs across cultures.

  • hygrometer

    Instruments that measure the amount of water vapor in the air and thus indicate relative humidity.

  • hyperbaric organ storage unit

    A container used to store human organs for transplant. The chamber uses low temperatures and high pressure.

  • hypodermic needle

    A hollow needle with a sharp point. A hypodermic needle is often used with a syringe to inject substances into the body.

  • hypodermic syringe

    A syringe is a simple piston pump consisting of a plunger that fits tightly in a tube. The plunger can be pulled and pushed along inside a cylindrical tube (the barrel), allowing the syringe to take in and expel a liquid or gas through an orifice at the open end of the tube. In modern medicine, a syringe is often fitted with a hypodermic needle to create a hypodermic syringe which is most commonly used for injecting materials directly into the bloodstream.

  • hypothermia

    A condition where the core body temperature drops below the level necessary to perform basic functions. In humans this is 35°C. Hypothermia is often caused by over exposure to cold conditions.

  • hysterectomy

    The operation of removing the uterus, through either the abdominal wall or the vagina.

  • hysteria

    A nervous affection, occurring almost exclusively in women, in which the emotional and reflex excitability is exaggerated, and the will power correspondingly diminished, so that the patient loses control over the emotions, becomes the victim of imaginary sensations, and often falls into paroxism or fits.

  • hysterotome

    An instrument for cutting or scarifying the uterus or the neck of the uterus, especially the cervix

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