/ Thesaurus / O Synonyms of oestradiol Find synonyms for: Noun1. estradiol, oestradiol, estrogen, oestrogenusage: the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language