sar·casm Â
Pronunciation Key  (särkzm)
n.
1. A cutting, often ironic remark intended to wound; A form of wit that is marked by the use of sarcastic language and is intended to make its victim the butt of contempt or ridicule; The use of sarcasm; Witty language used to convey insults or scorn; "he used sarcasm to upset his opponent"; "irony is wasted on the stupid"; A keen, reproachful expression; A satirical remark uttered with some degree of scorn or contempt; A taunt; A gibe; A cutting jest.
\Sar"casm\, n. [F. sarcasme, L. sarcasmus, Gr. sarkasmo`s, from sarka`zein to tear flesh like dogs, to bite the lips in rage, to speak bitterly, to sneer, fr. sa`rx, sa`rkos, flesh.]
Syn: Satire; irony; ridicule; taunt; gibe, caustic remark.
Source: Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.