Also found in: Medical.
Related to tetradynamous: placentation, didynamous, syngenesious, syncarpous
Having six stamens, four of which are longer than the others, as in most plants of the mustard family.
(Botany) (of plants) having six stamens, two of which are shorter than the others
[C19: from tetra- + Greek dunamis power]
tet•ra•dy•na•mous(ˌtɛ trəˈdaɪ nə məs)
having four long and two short stamens, as a flower of the mustard family.