/ Dictionary / Index C cathetus: Meaning and Definition of Find definitions for: cath•e•tus Pronunciation: (kath'i-tus, ku-thē'tus), [key] — pl. -ti (in an Ionic capital) the vertical guideline through the eye of a volute, from which the form of the volute is determined. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. catheterize cathexis Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language