Kenneth G. Wilson (1923–). The Columbia Guide to Standard American English. 1993.
prosthesis, prosthetics (nn.), prosthetic (adj.)
A prosthesis is a device that substitutes for all or part of a missing human limb or organ; the plural is prostheses. The adjective is prosthetic: Dentures are prosthetic devices. Prosthetics is the subject and process of designing, making, and fitting prosthetic devices. See FOREIGN PLURALS.
