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Pronunciation: (tik), [key]
1. Pathol.
a. a sudden, spasmodic, painless, involuntary muscular contraction, as of the face.
b. See tic douloureux.
2. a persistent or recurrent behavioral trait; personal quirk: her distinctive verbal tics.


a suffix, equivalent in meaning to -ic, occurring in adjectives of Greek origin (analytic), used esp. in the formation of adjectives from nouns with stems in -sis: hematotic; neurotic.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

See also:
  • tic (Thesaurus)
  • tic (Encyclopedia)


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