The hard
external coat or covering of anything; the hard exterior surface
or outer shell; an incrustation; as, a crust of
snow.
The hard exterior or surface of bread, in distinction from
the soft part or crumb; or a piece of bread grown dry or
hard.
The exterior portion of
the earth, formerly universally supposed to inclose a molten
interior.
The shell of
crabs, lobsters, etc.
A hard mass, made up of
dried secretions blood, or pus, occurring upon the surface of the
body.
An incrustation on the interior of
wine bottles, the result of the ripening of the wine; a deposit
of tartar, etc. See Beeswing.