1. Noun.  The sound of laughing, produced by air so expelled; any similar sound.
  2. Noun.  A movement (usually involuntary) of the muscles of the laughing face, particularly of the lips, with a peculiar expression of the eyes, indicating merriment, satisfaction or derision, and usually attended by a sonorous and interrupted expulsion of air from the lungs.
  3. Noun.  (archaic) A reason for merriment.

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This entry was last updated on RefTopia from its source on 3/20/2012.