Source : Webster's Revised Unabridged Dictionary (1913)

Caseous \Ca"se*ous\, a. [L. caseus. Cf. {Casein}.]
   Of, pertaining to, or resembling, cheese; having the
   qualities of cheese; cheesy.

   {Caseous degeneration}, a morbid process, in scrofulous or
      consumptive persons, in which the products of inflammation
      are converted into a cheesy substance which is neither
      absorbed nor organized.

Source : WordNet®

caseous
     adj : of damaged or necrotic tissue; cheeselike