Prosthesis
Pronunciation : Pros"the*sis
Part of Speech : n.
Etymology : [L., fr. Gr.
Definition : 1. (Surg.)
Defn: The addition to the human body of some artificial part, to replace one that is wanting, as a log or an eye; -- called also prothesis.
2. (Gram.)
Defn: The prefixing of one or more letters to the beginning of a word, as in beloved.
Source : Webster's Unabridged Dictionary, 1913