/ Dictionary / Index A anoestrus: Meaning and Definition of Find definitions for: an•oes•trus Pronunciation: (an-es'trus, -ē'strus), [key] — n. anestrus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anoestrus (Thesaurus) anoestrous anoia Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language