/ Dictionary / Index C cryo-: Meaning and Definition of Find definitions for: cryo- Pronunciation: [key] a combining form meaning “icy cold,” “frost,” used in the formation of compound words: cryogenics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crymotherapy cryobiology Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language