/ Dictionary / Index C cinder cone: Meaning and Definition of Find definitions for: cin'der cone" Pronunciation: [key] — Geol. Geol. a small, conical volcano built of ash and cinders. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cinder concrete Cinderella Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language