/ Thesaurus / D Synonyms of diestrum Find synonyms for: Noun1. diestrus, diestrum, anestrus, anestrum, anoestrus, anoestrumusage: (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activityWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language