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