Definition of bignoniaceous in English:

bignoniaceous

adjective

Botany
  • Belonging to or characteristic of the family Bignoniaceae of dicotyledonous plants (comprising mainly tropical and subtropical American lianes, trees, and shrubs), of which Bignonia is the type genus.

Origin

Early 19th century; earliest use found in Helen Maria Williams (1761–1827), writer. From bignonia + -aceous, after scientific Latin Bignoniaceae, family name.

Pronunciation

bignoniaceous

/ˌbɪɡnəʊnɪˈeɪʃəs/