Definition of Pentagynia in US English:

Pentagynia

noun

Botany
historical
  • In the Linnaean artificial system: an order comprising plants having flowers with five pistils or styles.

Origin

Mid 18th century; earliest use found in John Hill (bap. 1714, d. 1775), physician and actor. From scientific Latin Pentagynia, order name (Linnaeus Systema Naturae) from ancient Greek πεντα- + γυνή + scientific Latin -ia.

Pronunciation

Pentagynia

/ˌpɛntəˈdʒɪnɪə/