Source : Webster's Revised Unabridged Dictionary (1913)

Cachexia \Ca*chex"i*a\, Cachexy \Ca*chex"y\, n. [L. cachexia,
   Gr. kachexi`a; kako`s bad + "e`xis condition.]
   A condition of ill health and impairment of nutrition due to
   impoverishment of the blood, esp. when caused by a specific
   morbid process (as cancer or tubercle).

Source : WordNet®

cachexia
     n : any general reduction in vitality and strength of body and
         mind resulting from a debilitating chronic disease [syn:
         {cachexy}, {wasting}]