countersurveillance

surveillance

[ser-vey-luhns, -veyl-yuhns]
noun
1.
a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like: The suspects were under police surveillance.
2.
supervision or superintendence.

Origin:
1790–1800; < French, equivalent to surveill(er) to watch over (sur- sur-1 + veiller < Latin vigilāre to watch; see vigil) + -ance -ance

countersurveillance, noun
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World English Dictionary
surveillance (sɜːˈveɪləns)
 
n
close observation or supervision maintained over a person, group, etc, esp one in custody or under suspicion
 
[C19: from French, from surveiller to watch over, from sur-1 + veiller to keep watch (from Latin vigilāre; see vigil)]
 
sur'veillant
 
adj, —n

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Etymonline
Word Origin & History

surveillance
1802, from Fr. surveillance "oversight, supervision, a watch," noun of action from surveiller "oversee, watch," from sur- "over" + veiller "to watch," from L. vigilare, from vigil "watchful" (see vigil). Seemingly a word of the Terror in France. A hideous back-formation, surveille
(v.), was coined in 1960 in U.S. government jargon. Pray that it dies.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

surveillance sur·veil·lance (sər-vā'ləns)
n.

  1. Close observation of a person or group, especially one under suspicion.

  2. The act of observing or the condition of being observed.

  3. The collection, collation, analysis, and dissemination of data.

  4. A type of observational study that involves continuous monitoring of disease occurrence within a population.

The American Heritage® Stedman's Medical Dictionary
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