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late 15c., "quick, sudden bite or cut," from Dutch or Low German snappen "to snap," probably related to Middle Low German or Middle Dutch snavel "bill, beak," from West Germanic *snu-, an imitative root forming words having to do with the nose (see snout).
As an adjective from 1790. Commonly used to indicate instantaneous action, e.g. snap judgment (1841). Sense of "quick movement" is first recorded 1630s; that of "something easily done" is 1877. Meaning "brief or sudden spell" of weather (usually cold) is from 1740. Meaning "catch or fastener that closes with a snapping sound" is from 1815. The card game name is attested from 1881, from a call used in the game. Meaning "a snap-shot" is from 1894. U.S. football sense is from 1912, earlier snap-back (1880), which also was a name for the center position. Snap, Crackle and Pop, cartoon characters associated with Kellogg breakfast cereal Rice Krispies, are from 1940.
1520s, of animals, "to make a quick bite," from snap (n.). Meaning "to break suddenly or sharply" is first recorded c.1600; the mental sense is from 1970s. Meaning "come into place with a snap" is from 1793. Meaning "take a photograph" is from 1890. U.S. football sense first recorded 1887. Related: Snapped; snapping. To snap the fingers is from 1670s. Phrase snap out of it recorded by 1907. Snapping turtle is attested from 1784. Snap-brim (adj.) in reference to a type of hat is from 1928.
A short sharp sound; a click. Used especially of cardiac sounds.
: Kenosha officials watch out for the ''snake-oil salesmen''noun phrase
A fraudulent remedy: But I have to admit he sounded sincere, like he really believes in that snake oil he's peddling (1927+)
1. An early (IBM 360?) interpreted text-processing language for beginners, close to basic English.
["Computer Programming in English", M.P. Barnett, Harcourt Brace 1969].
2. ["Some Proposals for SNAP, A Language with Formal Macro Facilities", R.B. Napper, Computer J 10(3):231-243, 1967].
[Same as 1?]
The underlying metaphor may be a rubber band stretched through a number of points; if you release it from the intermediate points, it snaps to a straight line from first to last.
Often a trampoline performs an error check once and then snaps the pointer that invoked it so subsequent calls will bypass the trampoline (and its one-shot error check). In this context one also speaks of "snapping links". For example, in a Lisp implementation, a function interface trampoline might check to make sure that the caller is passing the correct number of arguments; if it is, and if the caller and the callee are both compiled, then snapping the link allows that particular path to use a direct procedure-call instruction with no further overhead.