/ Dictionary / Index A adrenaline: Meaning and Definition of Find definitions for: a•dren•a•line Pronunciation: (u-dren'l-in, -ēn"), [key] — n. Biochem, Pharm. epinephrine (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adrenaline (Thesaurus) Adrenalin adrenalize Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language