半重瓣的
Semidouble \Sem"i*dou`ble\, n. (Eccl.) An office or feast celebrated with less solemnity than the double ones. See {Double}, n., 8. Semidouble \Sem`i*dou"ble\, a. (Bot.) Having the outermost stamens converted into petals, while the inner ones remain perfect; -- said of a flower.