/ Dictionary / Index C centr-: Meaning and Definition of Find definitions for: centr- Pronunciation: [key] var. ofbefore a vowel: centroid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cento centra Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language