Definition of orexis in English:

orexis

noun

rare
  • Appetite; physical desire.

Origin

Early 17th century. From classical Latin orexis appetite (Juvenal) from ancient Greek ὄρεξις desire, appetite from ὀρέγειν to stretch out, grasp after, desire + -σις.

Pronunciation

orexis

/ɒˈrɛksɪs/