/ Dictionary / Index B butene: Meaning and Definition of Find definitions for: bu•tene Pronunciation: (by'tēn), [key] — n. Chem. butylene (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: butene (Thesaurus) Butenandt buteo Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language