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Surveillance

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sur⋅veil⋅lance

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

Origin:
1790–1800; < F, equiv. to surveill(er) to watch over (sur- sur- 1 + veiller < L vigilāre to watch; see vigil ) + -ance -ance
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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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.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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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, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: sur·veil·lance
Pronunciation: s&r-'vA-l&n(t)s also -'vAl-y&n(t)s or -'vA-&n(t)s
Function: noun
: close and continuous observation or testing surveillance> —see IMMUNOLOGICALSURVEILLANCE
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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