ETYM Latin incrustatio: cf. French incrustation. Related to Incrust.
1. The act of incrusting, or the state of being incrusted.
2. A crust or hard coating of anything upon or within a body, as a deposit of lime, sediment, etc., from water on the inner surface of a boiler.
3. A covering or inlaying of marble, mosaic, etc., attached to the masonry by cramp irons or cement.
4. Anything inlaid or imbedded.