/ Dictionary / Index A alkene: Meaning and Definition of Find definitions for: al•kene Pronunciation: (al'kēn), [key] — n. Chem. any member of the alkene series. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alkene (Thesaurus) alkekengi alkene series Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language