prosthesis
noun/prɒsˈθiːsɪs/
/prɑːsˈθiːsɪs/
(plural prostheses
(medical)/prɒsˈθiːsiːz/
/prɑːsˈθiːsiːz/
)- an artificial part of the body, for example a leg, an eye or a toothWord Originmid 16th cent. (originally denoting the addition of a letter or syllable at the beginning of a word): via late Latin from Greek prosthesis, from prostithenai, from pros ‘in addition’ + tithenai ‘to place’.
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