Definition of obdiplostemonous in US English:

obdiplostemonous

adjective

Botany
  • Diplostemonous with the disposition of the two stamen-whorls reversed; having the stamens of the outer whorl opposite the petals and those of the inner whorl opposite the sepals; (of stamens) arranged in this way.

Origin

Late 19th century; earliest use found in Nature: a weekly journal of science. From ob- + diplostemonous.

Pronunciation

obdiplostemonous

/ˌɒbdɪpləʊˈstiːmənəs/