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Definition of Observer
1. Noun. A person who becomes aware (of things or events) through the senses.
Generic synonyms: Individual, Mortal, Person, Somebody, Someone, Soul
Specialized synonyms: Eyeglass Wearer, Discoverer, Finder, Spotter, Attender, Auditor, Hearer, Listener, Audile, Motile, Noticer, Seer, Looker, Spectator, Viewer, Watcher, Witness, Visualiser, Visualizer, Informant, Witness, Witnesser
Derivative terms: Behold, Observe, Observe, Observe, Perceive
2. Noun. An expert who observes and comments on something.
Generic synonyms: Expert
Specialized synonyms: Annotator
Derivative terms: Commentate, Observe
Definition of Observer
1. n. One who observes, or pays attention to, anything; especially, one engaged in, or trained to habits of, close and exact observation; as, an astronomical observer.
Definition of Observer
1. Noun. One who makes observations, monitors or takes notice ¹
2. Noun. One who adheres or follows laws, guidelines, etc. ¹
3. Noun. A person sent as a representative, to a meeting or other function to monitor but not to participate ¹
4. Noun. (military) A crew member on an aircraft who makes observations of enemy positions or aircraft ¹
5. Noun. (military) A sentry etc. manning an observation post ¹
¹ Source: wiktionary.com
Definition of Observer
1. one that observes [n -S] - See also: observes
Medical Definition of Observer
1. One who perceives, notices, or watches; in behavioural research with humans, the investigator or his/her surrogate. Origin: L. Observo, to watch Nonparticipant observer, an investigator who studies a group of subjects engaged in certain activities but does not directly participate in these activities, presumably being able to study them more objectively. Participant observer, an investigator who while studying the activities of a group of subjects also participates in their activities, presumably being able to gain more detailed, relevant information but with less objectivity. (05 Mar 2000)