/ Dictionary / Index C cetane: Meaning and Definition of Find definitions for: ce•tane Pronunciation: (sē'tān), [key] — n. a colorless, liquid hydrocarbon of the alkane series, CH, used as a solvent and in cetane number determinations. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cetaceum cetane number Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language