Definition of Rhipaean in US English:

Rhipaean

(also Rhipean, Ripaean, Ripean)

adjective

  • = Riphaean. Frequently in "Rhipaean mountains".

Origin

Early 18th century. From classical Latin Rīpaeus, Rhīpaeus and its etymon ancient Greek Ῥιπαῖος of or belonging to the Rhipaean mountains (from Ῥίπαι, name of a mythical mountain range + -αῖος, suffix forming adjectives) + -an.