1. The outer layer of the Earth
   - Earth's crust 
2. A hard outer layer that covers something
   - incrustation, encrustation 
3. The trait of being rude and impertinent; inclined to take liberties
   - gall, impertinence, impudence, insolence, cheekiness, freshness

1. Form a crust or form into a crust
   "The bread crusted in the oven"

Derived forms: crusting, crusts, crusted

See also: crustaceous, crustal, crustose, crusty

Type of: change surface, cover, covering, discourtesy, layer, natural covering, rudeness

Part of: geosphere, lithosphere

Encyclopedia: Crust

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