The Collaborative International Dictionary of English v.0.48:
Prosthetic \Pros*thet"ic\, a. [Cf. Gr. ? disposed to add, ? put on.] Of or pertaining to prosthesis; prefixed, as a letter or letters to a word. [1913 Webster]WordNet (r) 3.0 (2006):
prosthetic adj 1: of or relating to prosthetics 2: relating to or serving as a prosthesis