Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
monestrous is an adjective meaning "having one estrous cycle per year". It carries one recorded sense.
having one estrous cycle per year
Definitions, synonyms and semantic relations for monestrous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.