Breadcrumb Home > Thesaurus > I Synonyms of immunogen Find synonyms for: Noun 1. immunogen, immunizing agent, antigen usage: any substance or organism that provokes an immune response (produces immunity) when introduced into the body WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of immunogen (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: rococo Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language