Breadcrumb Home > Thesaurus > V Synonyms of vaccine Find synonyms for: Noun 1. vaccine, vaccinum, immunogen, immunizing agent usage: immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of vaccine (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: parallax Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language