/ Thesaurus / D Synonyms of dioecian Find synonyms for: Adjective1. dioecious (vs. monoecious), dioecianusage: having male and female reproductive organs in separate plants or animalsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language