| light-water reactor | <radiobiology> Class of fission reactors using ordinary light water as a coolant, rather than liquid metal or heavy water (water with deuterium instead of hydrogen). (09 Oct 1997) |
|---|---|
| anoxic reactor | A bioreactor which is used to treat wastewater that utterly lacksdissolved oxygen, in it, faculatively anaerobic microbes are able tooxidize the sewage because they use nitrate ions as their oxygen source. (09 Oct 1997) |
| boiling water reactor | <radiobiology> Class of fission reactor where water is used as a coolant and allowed to boil into steam. (09 Oct 1997) |
| breeder reactor | <physics> This is a nuclear reactor which produces nuclear fuel as it produces energy for electricity. (09 Oct 1997) |
| hollow fibre reactor | A fermentation system in which the cells are separated from the medium using semipermeable membranes arranged in the form of hollow fibres. (14 Nov 1997) |
| tokamak fusion test reactor | <radiobiology> Large tokamak at Princeton, first machine to use 50-50 mix of D-T fuel, current world's record holder in fusion energy production. Largest tokamak in the United States. (09 Oct 1997) |
| fission reactor | <radiobiology> A device that can initiate and control a self-sustaining series of nuclear fissions, typically used for either research or the production of energy or nuclear weapons materials. (09 Oct 1997) |
| fusion reactor | <radiobiology> Device which creates energy in a controlled manner through fusion reactions. (09 Oct 1997) |
| liquid-metal fast-breeder reactor | <physics> Fission breeder reactor concept using liquid-metal coolant and breeding additional fuel off fast neutrons. See: breeder reactor. (09 Oct 1997) |
| cerebral ischemia, transient | Nonconvulsive, reversible, focal neurologic deficits lasting minutes up to about 24 hours, resulting mainly from arteriosclerosis, emboli, or hypertensive episodes. (12 Dec 1998) |
| transient | 1. Short-lived; passing; not permanent; said of a disease or an attack. 2. A short-lived cardiac sound having little duration (less than 0.12 second) as distinct from a murmur; e.g., first, second, third, and fourth heart sounds, clicks, and opening snaps. Origin: L. Transeo, pres. P. Transiens, to cross over (05 Mar 2000) |
| transient acantholytic dermatosis | A pruritic papular eruption, with histologic suprabasal acantholysis, of the chest, with scattered lesions of the back and lateral aspects of the extremities, lasting from a few weeks to several months; seen predominantly in males over 40. Synonym: Grover's disease. (05 Mar 2000) |
| transient agammaglobulinaemia | A type of primary immunodeficiency that occurs in infants of both sexes, usually before the sixth month of life, probably resulting from immaturity of lymphoid tissue. Synonym: transient agammaglobulinaemia. (05 Mar 2000) |
| transient albuminuria | Albuminuria of a temporary or short-lived nature. (05 Mar 2000) |
| transient global amnesia | A memory disorder seen in middle aged and elderly persons characterised by an episode of amnesia and bewilderment which persists for several hours; during the episode the patient has a memory defect for present and recent past events, but is fully alert, oriented, capable of high-level intellectual activity, and has a normal neurological examination. Typically, these amnesic episodes occur spontaneously, and most patients experience only one; of uncertain aetiology-probably ischemic, but not due to atherosclerosis. (05 Mar 2000) |