[f. ENCRUST v. + -MENT.] concr. That which is deposited by the action of encrusting; an outer encrusted layer or shell. Also fig.
1861. Craik, Hist. Eng. Lit., I. 561. That rich … spirit of drollery … penetrating through all enfoldings and rigorous encrustments into the kernel of the ludicrous.
1876. Blackmore, Cripps, II. xiv. 211. The trees … glistened rather with soft moisture than with stiff encrustment.
