Source : Webster's Revised Unabridged Dictionary (1913)

Disarmament \Dis*arm"a*ment\, n. [Cf. F. d['e]sarmement.]
   The act of disarming.

Source : WordNet®

disarmament
     n : act of reducing or depriving of arms; "the disarmament of
         the aggressor nations must be complete" [syn: {disarming}]
         [ant: {arming}, {arming}]