/ Thesaurus / P Synonyms of plasminogen activator Find synonyms for: Noun1. plasminogen activator, urokinase, protease, peptidase, proteinase, proteolytic enzymeusage: protease produced in the kidney that converts plasminogen to plasmin and so initiates fibrinolysisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language