Caseous \Ca"se*ous\, a. [L. caseus. Cf. {Casein}.] Of, pertaining to, or resembling, cheese; having the qualities of cheese; cheesy. [1913 Webster] {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. [1913 Webster]