ambitypic: as applied to sexual dimorphism of the genitalia, brain, or behavior, differentiation of both female and male anlagen together during an initial phase, after which only one anlage, female or male, continues to develop and the other does not, as in the case of the Müllerian (female) and Wolffian (male) embryonic ducts.
Antonym,
unitypic.
Dictionary of Sexology Project: Main Index