[医] 外轮对瓣的(指雄蕊群), 具外轮对瓣雄蕊的(指花或植物)

Obdiplostemonous \Ob*dip`lo*stem"o*nous\, a. [Pref. ob- +
diplostemonous.] (Bot.)
Having twice as many stamens as petals, those of the outer
set being opposite the petals; -- said of flowers. --Gray.