/ Dictionary / Index A anestrous: Meaning and Definition of Find definitions for: an•es•trous Pronunciation: (an-es'trus), [key] — adj. not showing estrus. of or pertaining to anestrus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anestrous (Thesaurus) anesthetize anestrus Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language