Biform and Duple

Biform adjective - Having or combining two forms.

Duple and biform are semantically related in part topic. In some cases you can use "Duple" instead an adjective "Biform".

Duple adjective - Consisting of or involving two parts or components usually in pairs.

Biform and duple are semantically related in part topic. You can use "Biform" instead an adjective "Duple".