|n.||1.||A movement (usually involuntary) of the muscles of the 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. See Laugh, |
The act of laughter, which is a sweet contraction of the muscles of the face, and a pleasant agitation of the vocal organs, is not merely, or totally within the jurisdiction of ourselves.
|Noun||1.||laughter - the sound of laughing|
|2.||laughter - the activity of laughing; the manifestation of joy or mirth of scorn; "he enjoyed the laughter of the crowd"|