D defs.my
Entry 4 senses Webster, 1913

Incrustation

/ĭnˌ-krəs-tāsh'-ən/ · In·crus·ta·tion · IPA /ɪnkɹʌsˈteɪʃən/
01 n. The act of incrusting, or the state of being incrusted.
  1. 1.
    The act of incrusting, or the state of being incrusted.
  2. 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 steam boiler.
  3. 3.
    A covering or inlaying of marble, mosaic, etc., attached to the masonry by cramp irons or cement.(Arch.)
  4. 4.
    Anything inlaid or imbedded.(Fine Arts)