Breadcrumb Home > Thesaurus > P Synonyms of prostaglandin Find synonyms for: Noun1. prostaglandin, autacoid, autocoidusage: a potent substance that acts like a hormone and is found in many bodily tissues (and especially in semen); produced in response to trauma and may affect blood pressure and metabolism and smooth muscle activityWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of prostaglandin (Dictionary) ✖ Related Content Daily Word Quiz: tautology Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language