/ Dictionary / Index C cycloolefin: Meaning and Definition of Find definitions for: cy•clo•o•le•fin Pronunciation: (sī"klō-ō'lu-fin, sik"lō-), [key] — n. Chem. any of the homologous series of unsaturated, alicyclic hydrocarbons, as cyclooctatetraene and cyclopentadiene, containing one double bond in the ring and having the general formula CH. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cyclooctatetraene cycloparaffin Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language