Breadcrumb Home > Thesaurus > I Synonyms of interferon Find synonyms for: Noun 1. interferon, antiviral, antiviral agent, antiviral drug usage: an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of interferon (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: jactation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language