protogynousPronunciation: /prəʊˈtɒdʒɪnəs/Definition of protogynous adjective Botany & Zoology (of a hermaphrodite flower or animal) having the female reproductive organs come to maturity before the male. The opposite of protandrous.Derivatives protogyny noun protogynous in other Oxford dictionaries Definition of protogynous in the US English dictionary