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  • mental health

    Mental health is the term used to describe a level of emotional wellbeing, or the absence of a mental illness or disorder.

  • mental hospital

    Hospital specialising in the treatment of serious mental illness usually for relatively long-term inpatients.

  • mental illness

    Who were the `mentally ill’? We use this phrase to reflect the historical descriptions of individuals with a variety of behaviours, mental health problems and pathologies. Historically, the concept of ‘ madness’ or ‘insanity’ was used to describe people who may have had what we would now consider psychiatric disorders. It often also included those showing symptoms of syphilis, epilepsy, depression, or in some cases merely behaviour considered to be eccentric or outside commonly accepted norms.

  • menu card

    Lists of dishes to be served or available for meals.

  • menu card holder

    Use for a device for holding a menu

  • menus

    Lists of dishes to be served or available for meals. AHD.

  • merchant vessel

    Watercraft engaged in commercial transport on oceans or large inland bodies of water

  • mercurial air holder

    Device that measures the amount of air a person releases when breathing out.

  • mercury

    Use for the pure metallic element having symbol Hg and atomic number 80; a lustrous silvery metal that is liquid at ordinary temperatures. Use also for this metal as processed and formed, usually in combination with other substances, to make various objects and materials.

  • mercury barometer

    Barometers that measure atmospheric pressure by measuring the height of a column of mercury that the atmosphere will support.

  • mercury thermometer

    Instrument using the expansion mercury in a glass tube against a line scale to measure air temperatures. Can be used for higher temperatures than an alcohol thermometer.

  • meridians

    The main channels of energy flow (qi) in Chinese medicine. There are 12 meridians in total.

  • Mesmerism

    Based on the theories of Franz Anton Mesmer (1734-1815). Claimed he could heal people based on his theory of animal magnetism. This fluid flowed through living things but when it became blocked, it caused disease. Treatment was holding magnets over specific parts of the body. His ideas were unfounded.

  • meteorograph

    Instrument designed to measure and record automatically several meteorological elements, such as air pressure, temperature, and humidity.

  • Methicillin Resistant Staphylococcus Aureus

    Methicillin Resistant Staphylococcus Aureus (MRSA) is a dangerous bacterium that is becoming increasingly common. It is resistant to known antibiotics and so is difficult to treat. Hospital patients are at particular risk of infection, as a result of a weakened immune systems or open wounds. Initial symptoms include small red bumps, which develop into painful boils.

  • methylpentynol

    sedative used to calm the nerves

  • methylphenidate

    generic name for Ritalin

  • microbiology

    Branch of biology that deals with micro-organisms such as bacteria, viruses, and fungi, and their effects.

  • micrometer

    A gauge for accurate small-scale measurement.

  • micro-organism

    A tiny single-celled living organism too small to be seen by the naked eye. Micro-organisms that cause disease are called bacteria.

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