surveillance[sər vā′ləns; occas., -vāl′yəns]
- Surveillance is the close observation of someone, often in order to catch them in wrongdoing.
An example of surveillance is a private detective hired to follow a cheating spouse before divorce proceedings.
- close watch kept over someone, esp. a suspect
- constant observation of a place or process
- supervision or inspection
Origin of surveillanceFrench ; from surveiller, to watch over ; from sur- (see sur-) + veiller ; from Classical Latin vigilare, to watch, wake
- Close observation of a person or group, especially one under suspicion.
- The act of observing or the condition of being observed.
- Close observation of an individual or group; person or persons under suspicion.
- Continuous monitoring of disease occurrence for example.
- (military, espionage) Systematic observation of places and people by visual, aural, electronic, photographic or other means.
- (law) In criminal law, an investigation process by which police gather evidence about crimes, or suspected crime, through continued observation of persons or places.
Borrowing from French surveillance (“a watching over, overseeing, supervision”), from surveiller (“to watch, oversee”), from sur- (“over”) + veiller (“to watch”), from Middle French, from Old French veillier (“to stay awake”), from Latin vigilāre, present active infinitive of vigilō (“I am watchful”). More at vigilant.
surveillance - Computer Definition
surveillance - Legal Definition