Definition of polygalaceous in English:

polygalaceous

adjective

Botany
  • Designating, belonging to, or characteristic of the plant family Polygalaceae, which includes the milkworts and is of almost worldwide distribution.

Origin

Mid 19th century; earliest use found in The Penny Cyclopaedia. From scientific Latin Polygala, genus name + -aceous, after scientific Latin Polygalaceae, family name, replacing earlier † Polygaleae.

Pronunciation

polygalaceous

/pəˌlɪɡəˈleɪʃəs/