Source : Webster's Revised Unabridged Dictionary (1913)

Incasement \In*case"ment\, n. [Cf. {Casement}.]
   1. The act or process of inclosing with a case, or the state
      of being incased.

   2. That which forms a case, covering, or inclosure.

Source : WordNet®

incasement
     n : the act of enclosing something in a case [syn: {encasement}]