Webster's Revised Unabridged Dictionary · 1913

monestrous

monestrous , adjective

(Zoology) Having only one estrus period per breeding cycle or per year; -- of certain mammals.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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