A more solid, dense or hard layer on a surface or boundary.
An outer layer composed of pastry
The top or bottom slice of a loaf of bread; The end piece of a loaf; The heel.
The shell of crabs, lobsters, etc.
The outermost layer of any terrestrial planet.
Nerve, gall.
The outermost layer of the lithosphere of the Earth.
The external, hardened layer of certain foodstuffs, including most types of bread, fried meat, etc.
A living.
The bread-like base of a pizza.
To cover with a crust.
To form a crust.
A layer of adatoms adsorbed onto a surface, as onto the surface of a single crystal.