Definition of proal in English:

proal

adjective

Zoology
  • Characterized by or involving movement from back to front, especially of the lower jaw in mastication. Contrasted with palinal.

Origin

Late 19th century; earliest use found in Edward Cope (1840–1897). Irregularly from ancient Greek πρό forward + -al.

Pronunciation

proal

/ˈprəʊəl/