The crust is a hard layer that forms on the outside of something, like a loaf of bread. Little kids often like their sandwiches with the crust cut off.
You’ve probably eaten lots of crusts — bread crust, pie crust — any food that’s hard on the outside and soft on the inside has a crust. Crust is also a verb meaning “to form a hard outer layer.” Crusting happens with more than just food, like when a layer of dirt crusts your clothes after a romp in the mud. The Earth has a hard crust too. Little kids don’t like to eat that either, usually.
Primary Meanings of crust
a hard outer layer that covers something
form a crust or form into a crust
the trait of being rude and impertinent; inclined to take liberties
n a hard outer layer that covers something
n the outer layer of the Earth
- Earth's crust
a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land
crustal plate, plate
a rigid layer of the Earth's crust that is believed to drift slowly
- Type of:
a relatively thin sheetlike expanse or region lying over or under another