/ Dictionary / Index A anoestrous: Meaning and Definition of Find definitions for: an•oes•trous Pronunciation: (an-es'trus, -ē'strus), [key] — adj. anestrous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anoestrous (Thesaurus) anoesis anoestrus 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