[ tik ]
/ tɪk /


  1. a sudden, spasmodic, painless, involuntary muscular contraction, as of the face.
  2. tic douloureux.
a persistent or recurrent behavioral trait; personal quirk: her distinctive verbal tics.

Origin of tic

1790–1800; < French (of expressive orig.)
Can be confusedtic tick

Definition for tic (2 of 2)


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

Origin of -tic

< Greek -tikos, extracted from adjectives derived with -ikos -ic from agent nouns ending in -tēs; cf. hieratic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tic

British Dictionary definitions for tic


/ (tɪk) /

noun pathol

spasmodic twitching of a particular group of muscles

Word Origin for tic

C19: from French, of uncertain origin; compare Italian ticche
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for tic


[ tĭk ]


A habitual spasmodic muscular movement or contraction, usually of the face or extremities.habit spasm

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.