(of stamens) having united filaments so that they are arranged in two groups
2.
(of flowers) having diadelphous stamens
Word origin
C19: from di-1 + Greek adelphos brother
diadelphous in American English
(ˌdaɪəˈdɛlfəs)
adjective
1.
arranged in two bundles or sets by the fusion of the filaments
said of stamens
2.
having the stamens so arranged, as in the sweet pea
Word origin
< di-1 + Gr adelphos, brother < a-, copulative + delphys, womb (see dolphin); used in contrast to phratēr, brother, commonly used for cousins and other relatives and for political colleagues; + -ous