Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
exogamous is an adjective meaning "characterized by or fit for fertilization by a flower that is not closely related". It carries 2 recorded senses.
characterized by or fit for fertilization by a flower that is not closely related
botany
pertaining to or characterized by the custom of marrying only outside the limits of a clan or tribe
anthropology
Definitions, synonyms and semantic relations for exogamous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.