Breadcrumb Home > Thesaurus > P Synonyms of protamine Find synonyms for: Noun1. protamine, simple proteinusage: a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparinWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of protamine (Dictionary) ✖ Related Content Daily Word Quiz: taradiddle Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language