Snap, n. [Cf. D. snap a snatching. See Snap, v. t.] 1. A sudden
breaking or rupture of any substance.
2. A sudden, eager bite; a sudden seizing, or effort to seize, as with
the teeth.
3. A sudden, sharp motion or blow, as with the finger sprung from the
thumb, or the thumb from the finger.
4. A sharp, abrupt sound, as that made by the crack of a whip; as, the
snap of the trigger of a gun.