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Glossary

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T

  • tablet making machine

    A machine for pressing and forming tablets.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • tenaculum

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

  • 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.

  • test tube

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

  • 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

  • theriac

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

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