Also found in: Medical.
Having the filaments of a flower united into two groups: diadelphous stamens.
[di- + Greek adelphos, brother.]
1. (Botany) (of stamens) having united filaments so that they are arranged in two groups
2. (Botany) (of flowers) having diadelphous stamens
[C19: from di-1 + Greek adelphos brother]
di•a•del•phous(ˌdaɪ əˈdɛl fəs)
(of stamens) united into two sets by their filaments.