/ Thesaurus / P Synonyms of ptomain Find synonyms for: Noun1. ptomaine, ptomain, amine, aminoalkaneusage: any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteriaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language