1. The addition of an artificial part to supply a bodily defect; prothesis; the prefixing of one or more letters to the beginning of a word.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• prosthisis,
• prothesis,
• prostheic,
• prostesis,
• prosthetist,
• protheses,
• prothesic,
• hypersemesis,
• prostheom,
• -prostheon,
• orosthesis,
• lrosthesis,
• prostheseis,
• posthesis,
• prosthess,
• porsthesis,
• prossthesis,
• prosthesys,
• prostosis,
• Prosthysis

• prostatitis,
• prostate,
• prostheon,
• prosthetic,
• priestess,
• prostyle,
• PRIESTER,
• prosthion,
• priestley,
• prosthetics,
• prosthetist,
• presutti,
• prostrate.

The adjective form of the word "prosthesis" is "prosthetic".

The plural of the "prosthesis" can be the "prostheses".

The singular of the "prosthesis" can be the "prosthesis".