二体的; 二体雄蕊的
Diadelphian \Di`a*del"phi*an\, Diadelphous \Di`a*del"phous\, a. [Cf. F. diadelphe.] (Bot.) Of or pertaining to the class Diadelphia; having the stamens united into two bodies by their filaments (said of a plant or flower); grouped into two bundles or sets by coalescence of the filaments (said of stamens).