| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
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| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| URD | unspecified respiratory disease; upper respiratory disease |
| URI | uniform resource identifier; upper respiratory illness; upper respiratory infection |
| ARDS | Adult Respiratory Distress Syndrome |
| soapberry tree | <botany> Any tree of the genus Sapindus, especially. Sapindus saponaria, the fleshy part of whose fruit is used instead of soap in washing linen. Synonym: soap tree. (11 Mar 1998) |
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| neem tree | <botany> An Asiatic name for Melia Azadirachta, and M. Azedarach. See Margosa. Origin: Hind. Nim. Source: Websters Dictionary (01 Mar 1998) |
| nickar tree | <botany> Same as Nicker nut, Nicker tree. Source: Websters Dictionary (01 Mar 1998) |
| nicker tree | <botany> The plant producing nicker nuts. Alternative forms: neckar tree and nickar tree. Source: Websters Dictionary (01 Mar 1998) |
| decision tree | Alternative choices available at each stage of deciding how to manage a clinical problem, displayed graphically; at each branch or decision node, the probabilities of each outcome that can be predicted are shown; the relative worth of each outcome is described in terms of its utility or quality of life, e.g., as measured by probability of life expectancy or freedom from disability. (05 Mar 2000) |
| dendritic tree | Characteristic (tree like) pattern of outgrowths of neuronal dendrites. (18 Nov 1997) |
| quicken tree | <botany> The European rowan tree; called also quickbeam, and quickenbeam. See Rowan tree. Origin: Probably from quick, and first applied to the aspen or some tree with quivering leaves; cf. G. Quickenbaum, quizenbaum, quitschenbaum. Cf. Quitch grass. Source: Websters Dictionary (01 Mar 1998) |
| ironbark tree | <botany> The Australian Eucalyptus Sideroxylon, used largely by carpenters and shipbuilders. Synonym: ironwood. Source: Websters Dictionary (01 Mar 1998) |
| ople tree | The witch-hazel. Origin: L. Opulus a kind of maple tree. Source: Websters Dictionary (01 Mar 1998) |
| til tree | <botany> See Teil. Source: Websters Dictionary (01 Mar 1998) |
| tree | <botany> A woody plant at least 5 metres high, with a main stem the lower part of which is usually unbranched. (19 Jan 1998) |
| tree measurement sale | A type of timber sale contract in which the buyer and seller argree upon the volume at the time of the sale. (05 Dec 1998) |
| fir tree | See Fir. Source: Websters Dictionary (01 Mar 1998) |
| locust tree | <botany> A large North American tree of the genus Robinia (R. Pseudacacia), producing large slender racemes of white, fragrant, papilionaceous flowers, and often cultivated as an ornamental tree. In England it is called acacia. The name is also applied to other trees of different genera, especially to those of the genus Hymenaea, of which H. Courbaril is a lofty, spreading tree of South America; also to the carob tree (Ceratonia siliqua), a tree growing in the Mediterranean region. <botany> Honey locust tree, a small swamp tree (Gleditschia monosperma), of the Southern United States. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |
| acute respiratory failure | Loss of pulmonary function either acute or chronic that results in hypoxaemia or hypercarbia. (05 Mar 2000) |