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prosthesis

pros·the·sis [ pross thssiss ] (plural pros·the·ses [ pross th sz ])


noun 
Definition:
 
1. artificial body part: an artificial body part, e.g. an artificial limb or eye

2. replacement of body part: the branch of surgery concerned with replacing missing body parts with artificial devices

3. linguistics 
Same as  prothesis (sense 1)


[Mid-16th century. Via late Latin< Greek, "addition" < prostithenai "add to" < tithenai "to place"]

pros·thet·ic [ pross théttik ] adjective
pros·thet·i·cal·ly adverb
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