| elevators and escalators | Mechanical ascending and descending devices which convey objects and/or people. (12 Dec 1998) |
|---|---|
| tooth-and-nail syndrome | <syndrome> Hypodontia associated with absent or very small nails at birth. Common among Dutch Mennonites in Canada. (05 Mar 2000) |
| topping and back pressure turbine | Turbines which operate at exhaust pressure considerably higher than atmospheric (noncondensing turbines). These turbines are often multistage types with relatively high efficiency. (05 Dec 1998) |
| emblems and insignia | Figures or symbols identifying or representing organizations or societies. (12 Dec 1998) |
| embolism and thrombosis | A collective term for diseases characterised by the formation, development, or presence of a thrombus (thrombosis) and the blocking of a vessel by the thrombus brought to its site by the blood current (embolism). (12 Dec 1998) |
| track and field | Sports performed on a track, field, or arena and including running events and other competitions, such as the pole vault, shot put, etc. (12 Dec 1998) |
| tract of Munzer and Wiener | A fibre bundle arising in the superior colliculus, passing caudoventrally on the same side along the medial side of the lateral lemniscus, issuing fibres terminating in the lateral zone of the mesencephalic tegmentum, and ending in the lateral part of the gray matter of the ventral part of the pons. Synonym: tract of Munzer and Wiener, tractus tectopontinus. (05 Mar 2000) |
| transients and migrants | Mobile, short-term residents who move usually to find work. (12 Dec 1998) |
| environmental pollutants, noxae, and pesticides | Substances capable of producing a harmful or deadly effect on living organisms as well as the environment. (12 Dec 1998) |
| environment and public health | Natural and man-made environments and their impact on public health. (12 Dec 1998) |
| enzymes, coenzymes, and enzyme inhibitors | Proteins or RNA that act as biological catalysts, their cofactors, and inhibitors. (12 Dec 1998) |
| trial and error | The apparently random, haphazard, hit-or-miss exploratory activity which often precedes the acquisition of new information or adjustments; it may be overt, as in a rat running in a maze, or covert (vicarious), as when one thinks of various ways of coping with a situation. (05 Mar 2000) |
| trinidad and tobago | An independent state in the lesser antilles in the west indies, north of venezuela, comprising the islands of trinidad and tobago. Its capital is port of spain. Both islands were discovered by columbus in 1498. The spanish, english, dutch, and french figure in their history over four centuries. Trinidad and tobago united in 1898 and were made part of the british colony of trinidad and tobago in 1899. The colony became an independent state in 1962. Trinidad was so named by columbus either because he arrived on trinity sunday or because three mountain peaks suggested the holy trinity. Tobago was given the name by columbus from the haitian tambaku, pipe, from the natives' habit of smoking tobacco leaves. (12 Dec 1998) |
| equipment and supplies | Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures. (12 Dec 1998) |
| equipment and supplies, hospital | Any materials used in providing care specifically in the hospital. (12 Dec 1998) |