| sentinel surveillance | Monitoring of rate of occurrence of specific conditions to assess the stability or change in health levels of a population. It is also the study of disease rates in a specific cohort, geographic area, population subgroup, etc. To estimate trends in larger population. (12 Dec 1998) |
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| sentinel tag | Projecting edematous skin at the lower end of an anal fissure. (05 Mar 2000) |
| sentisection | Vivisection of an animal that is not anaesthetised. Origin: L. Sentio, to feel, + sectio, a cutting (05 Mar 2000) |