/ Dictionary / Index A alpha-interferon: Meaning and Definition of Find definitions for: al•pha-in•ter•fer•on Pronunciation: (al'fu-in"tur-fēr'on), [key] — n. Pharm. interferon (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alpha-interferon (Thesaurus) alpha helix alpha iron Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language