Pronunciation: (pros-thet'iks), [key]
—n. (used with a sing. or pl. v.)
1. the branch of surgery or of dentistry that deals with the replacement of missing parts with artificial structures. Cf. prosthodontics.
2. the fabrication and fitting of prosthetic devices, esp. artificial limbs.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.