This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of prosthesis.

"The advent of a blood-powered fuel-cell, intended for use in implanted prostheses, is a real cyberpunkian turn of affairs, rips for plot-twists regardign vampiric blood-farms powering illicit banks of icebreakers and the like."

theses