• (a.) Having a forked petiole, and a pair of leaflets at the end of each division; biconjugate; twice paired; -- said of a decompound leaf.
Bi·gem'i·nate adjective [ Prefix bi- + geminate .] (Botany) Having a forked petiole, and a pair of leaflets at the end of each division; biconjugate; twice paired; -- said of a decompound leaf.