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CONTRACTION. An abbreviation; a mode of writing or printing by which some of the letters of a word are omitted. See Abbreviations.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Maximal stimulus voltage was rechecked and length adjusted to achieve maximal force during isometric twitch contractions. These twitches and all subsequent recordings were separated by approximately 4 min intervals.
An active peak (P1), which was found to have an inhibitory effect on the twitch contraction of the radial muscle but no effect on spontaneous contractions of the intestine, eluted at about 0.15 M NaCl.
Muscles of male mice had faster twitch contraction time compared to female mice.