Found 2 items, similar to monestrous.
English → English (WordNet) Definition: monestrous monestrous adj : having one estrous cycle per year [syn: monoestrous]
English → English (gcide) Definition: monestrous monestrous \mon*es"trous\, a. (Zool.) Having only one estrus period per breeding cycle or per year; -- of certain mammals. [PJC]