Definition of profundus in US English:

profundus

noun

Anatomy Zoology
  • A deep-seated muscle; specifically the flexor digitorum profundus muscle, which arises from the ulna, flexes the distal phalanges of the fingers, and is situated beneath the muscle which flexes the middle phalanges.

Origin

Late 17th century. From classical Latin profundus.

Pronunciation

profundus

/prəʊˈfʌndəs/