Source : Webster's Revised Unabridged Dictionary (1913)

Emaciate \E*ma"ci*ate\, v. i. [imp. & p. p. {Emaciated}; p. pr.
   & vb. n. {Emaciating}.] [L. emaciatus, p. p. of emaciare to
   make lean; e + maciare to make lean or meager, fr. macies
   leanness, akin to macer lean. See {Meager}.]
   To lose flesh gradually and become very lean; to waste away
   in flesh. ``He emaciated and pined away.'' --Sir T. Browne.

Source : WordNet®

emaciated
     adj : very thin especially from disease or hunger or cold;
           "emaciated bony hands"; "a nightmare population of
           gaunt men and skeletal boys"; "eyes were haggard and
           cavernous"; "small pinched faces"; "kept life in his
           wasted frame only by grim concentration" [syn: {bony},
           {cadaverous}, {gaunt}, {haggard}, {pinched}, {skeletal},
            {wasted}]