| SE | saline enema; sanitary engineering; side effect; smoke exposure; solid extract; sphenoethmoidal; spi... |
|---|---|
| SEM | sample evaluation method; scanning electron microscopy; secondary enrichment medium; standard error ... |
| SP | sacroposterior; sacrum to pubis; salivary progesterone; schizotypal personality; semi-private [room]... |
| SSC | single-strand conformational [analysis]; sister strand crossover; somatosensory cortex; standard sal... |
| STP | phenol-preferring sulfotransferase; scientifically treated petroleum; sodium thiopental; standard te... |
| standard substance | A pure, authentic substance used for identification purposes. (05 Mar 2000) |
|---|---|
| standard temperature | A temperature of 0캜 or 273.15 |
| standard urea clearance | The value obtained when the square root of the urine flow (when below 2 ml/min) is multiplied by the urine urea concentration and divided by the whole blood urea concentration; represents an old empirical adjustment for the effect of low urine flow on urea excretion; sometimes corrected for body size by dividing by some function of body weight or surface area. Later, plasma concentration was substituted for blood concentration in the calculation. The normal value is about 54 ml/min per 1.73 m2 in an adult person. Synonym: Van Slyke's formula. (05 Mar 2000) |
| standard volume | The volume of an ideal gas at standard temperature and pressure, approximately 22.414 liters. (05 Mar 2000) |
| 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) |
| ICAO standard atmosphere | The standard atmosphere adopted by the International Civil Aviation Organization, used for calibrating altimeters and for expressing hypobaric chamber pressures in terms of equivalent altitude; it ignores many deviations found in nature. (05 Mar 2000) |
| emission standard | This regulatory value is a quantitative limit on the emission or discharge of a potentially toxic substance from a source. The simplest form for regulatory purposes is a uniform emission standard (UES) where the same limit is placed on all emissions of a particular contaminant. (09 Oct 1997) |
| environmental quality standard | This regulatory value defines the maximum concentration of a potentially toxic substance which can be allowed in an environmental compartment, usually air (air quality standard - AQS) or water, over a defined period. (09 Oct 1997) |
| biotic community | <biology, zoology> An aggregation of different species of organisms living and interacting within the same habitat. A group of fossil species which are often found together in the same sites. (19 Jan 1998) |
| community | <biology> An association of living organisms having mutual relationships among themselves and to their environment and thus functioning, at least to some degree, as an ecological unit. (05 Jan 1998) |
| community-acquired infections | Any infection acquired in the community, that is, contrasted with those acquired in a health care facility (cross infection). An infection would be classified as community-acquired if the patient had not recently been in a health care facility or been in contact with someone who had been recently in a health care facility. (12 Dec 1998) |
| community dentistry | The practice of dentistry concerned with preventive as well as diagnostic and treatment programs in a circumscribed population. (12 Dec 1998) |
| community health aides | Persons trained to assist professional health personnel in communicating with residents in the community concerning needs and availability of health services. (12 Dec 1998) |
| community health centres | Facilities which administer the delivery of health care services to people living in a community or neighborhood. (12 Dec 1998) |
| community health nurse | A nurse who provides care to individuals or groups in a community outside of institutions. Usually works through the auspices of a state or city health department. Synonym: community health nurse, community nurse. (05 Mar 2000) |