| standard-wing | <zoology> A curious paradise bird (Semioptera Wallacii) which has two long special feathers standing erect on each wing. Source: Websters Dictionary (01 Mar 1998) |
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| standardise | To compare with or conform to a standard, to establish standards. (18 Nov 1997) |
| standardised mortality ratio | The ratio of the number of events observed in a population to the number that would be expected if the population had the same distribution as a standard or reference population. (05 Mar 2000) |
| standardization | 1. The making of a solution of definite strength so that it may be used for comparison and in tests. 2. Making any drug or other preparation conform to the type or standard. 3. A set of techniques used to remove as far as possible the effects of differences in the age or other confounding variables when comparing two or more populations. Standardization of a test, in psychology, the following of definite procedures for administering, scoring, evaluating, and reporting the results of a new test which is under development. (05 Mar 2000) |
| standardize | <chemistry> To reduce to a normal standard; to calculate or adjust the strength of, by means of, and for uses in, analysis. Source: Websters Dictionary (01 Mar 1998) |
| standards and guidelines | Bounds or constraints within which all practices in a given area will be carried out, in achieving the goals and objectives for that area. Standards and guidelines provide environmental safeguards and also describe constraints prescribed by law. (05 Dec 1998) |
| standby pulse generator | A generator which suppresses its output in response to natural ventricular activity but which, in the absence of such activity, functions as an asynchronous pulse generator. Synonym: demand pulse generator, standby pulse generator. (05 Mar 2000) |
| standel | A young tree, especially one reserved when others are cut. Source: Websters Dictionary (01 Mar 1998) |
| standergrass | <botany> A plant (Orchis mascula); called also standerwort, and long purple. See Long purple, under Long. Source: Websters Dictionary (01 Mar 1998) |
| standing crop | The abundance, total weight, or energy content of organisms existing in a specified area at a given time. In relation to plants it usually refers to normal harvesting procedures, unless specified, for the particular plant under consideration and may not necessarily include the entire plant. (09 Oct 1997) |
| standing plasma test | If plasma is stored at 4캜 upright in a test tube, chylomicrons will float to the top and form a creamy layer. (05 Mar 2000) |
| standing stock | The number of organisms present in an area at a particular time. (09 Oct 1997) |
| standing test | A test for the effect of a hypotensive drug, carried out by the patient: after taking the drug, he stands perfectly still for one minute commencing from the time that the maximal action of the drug should be manifested; if the dose is adequate, the patient should experience a slight hypotensive reaction. (05 Mar 2000) |
| standpipe | 1. <engineering> A vertical pipe, open at the top, between a hydrant and a reservoir, to equalize the flow of water; also, a large vertical pipe, near a pumping engine, into which water is forced up, so as to give it sufficient head to rise to the required level at a distance. 2. A supply pipe of sufficient elevation to enable the water to flow into the boiler, notwithstanding the pressure of the steam. Source: Websters Dictionary (01 Mar 1998) |
| standstill | Cessation of activity. Atrial standstill, cessation of atrial contractions, marked by absence of atrial waves in the electrocardiogram. Synonym: auricular standstill. (05 Mar 2000) |