Breadcrumb Home > Thesaurus > T Synonyms of toxin Find synonyms for: Noun 1. toxin, poison, toxicant, poisonous substance usage: a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of toxin (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: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language