/ ɪˈmeɪʃieɪtɪd; NAmE ; ɪˈmeɪs-/ adjective
thin and weak, usually because of illness or lack of food
► ema·ci·ation / ɪˌmeɪsiˈeɪʃn; NAmE / noun [ U ]:
She was very thin, almost to the point of emaciation.
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WORD ORIGIN
early 17th cent.: from Latin emaciat- made thin, from the verb emaciare , from e- (variant of ex- , expressing a change of state) + macies leanness.