/ Dictionary / Index C centi-: Meaning and Definition of Find definitions for: centi- Pronunciation: [key] a combining form meaning “hundredth” or “hundred,” used in the formation of compound words: centiliter; centimeter; centipede. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. centesis centiare 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