Proterogynous is an antonym of proterandrous.
In botany|lang=en terms the difference between proterogynous and proterandrous
is that proterogynous is (botany) having the pistil come to maturity before the stamens; protogynous while proterandrous is (botany) having the stamens come to maturity before the pistil.
As adjectives the difference between proterogynous and proterandrous
is that proterogynous is (botany) having the pistil come to maturity before the stamens; protogynous while proterandrous is (botany) having the stamens come to maturity before the pistil.
proterogynous
English
Adjective
(-)
(botany) Having the pistil come to maturity before the stamens; protogynous.
proterandrous
English
Adjective
(-)
(botany) Having the stamens come to maturity before the pistil.