(n) :
the act of incrusting, or the state of being incrusted; 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 steam boiler
(n) :
the act of incrusting, or the state of being incrusted; 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 steam boiler