/ Dictionary / Index I ictus: Meaning and Definition of Find definitions for: ic•tus Pronunciation: (ik'tus), [key] — pl. -tus•es, -tus. rhythmical or metrical stress. an epileptic seizure. a stroke, esp. a cerebrovascular accident. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ictus (Thesaurus) Ictinus ICU Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language