Snap"shot` (?), n.
1. Commonly Snap shot.
(a)
A quick offhand shot, made without deliberately taking aim over the sights.
(b) (Photog.)
Act of taking a snapshot (in sense 2).
2.
An instantaneous photograph made, usually with a hand camera, without formal posing of, and often without the foreknowledge of, the subject.
© Webster 1913