ADJECTIVE (2)

1. of or relating to prosthetics;

2. relating to or serving as a prosthesis;

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]