• (a.) Partaking of two natures, as the perianth of some endogenous plants, where the outer surface is calycine, and the inner petaloid. • (a.) Of two kinds.
Am·big'e·nous adjective [ Latin ambo both + genus kind.] Of two kinds. (Botany) Partaking of two natures, as the perianth of some endogenous plants, where the outer surface is calycine, and the inner petaloid.