Definition of pro-angiosperm in English:

pro-angiosperm

noun

Botany
  • A hypothetical primitive or ancestral angiosperm.

Origin

Late 19th century; earliest use found in Nature: a weekly journal of science. From pro- + angiosperm, after French proangiosperme.

Pronunciation

pro-angiosperm

/prəʊˈan(d)ʒɪə(ʊ)spəːm/