snapshot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A photograph usually taken with a small handheld camera.
• noun An isolated observation.

from The Century Dictionary.

• noun A sudden or quick shot, literally or figuratively; in photography, the instantaneous taking of a picture as with a detective camera, or with one of the many portable cameras.
• Pertaining to or taken by a snapshot, as a photograph; adapted to the taking of instantaneous photographs: as, a snap-shot camera.
• Hence, executed rapidly or sketchily.
• To take a photographic snap-shot of.
• To take photographs with a snap-shot camera.

from the GNU version of the Collaborative International Dictionary of English.

• noun A quick offhand shot, made without deliberately taking aim over the sights.
• noun (Photog.) Act of taking a snapshot (in sense 2).
• noun An instantaneous photograph made, usually with a hand camera, without formal posing of, and often without the foreknowledge of, the subject.
• noun a brief summary or appraisal, especially one that describes the state of a situation at one particular time.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A photograph, especially one taken quickly or in a moment of opportunity.
• noun A glimpse of something; a portrayal of something at a moment in time.
• noun computing A file or set of files captured at a particular time, capable of being reloaded to restore the earlier state.
• noun soccer A quick, unplanned or unexpected shot.
• verb transitive To take a snapshot of.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an informal photograph; usually made with a small hand-held camera