ˌinˌkrəˈstāshən noun
or en·crus·ta·tion ˌenˌ-
Etymology: Latin incrustation-, incrustatio, from incrustatus + -ion-, -io -ion
1. : the act of encrusting or state of being encrusted : formation of a crust
2.
a. : a crust or hard coating of something upon or within a body
b. : a growth or accumulation (as of habits, opinions, customs) resembling an encrusting layer
3. : a covering or inlaying (as of marble or mosaic) attached to masonry by cramp iron or cement
4. : something applied as an overlay or inlay
incrustation of diamonds