1. crust - Noun
2. crust - Verb
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 cover or case of a pie, in distinction from the soft contents.
The dough, or mass of doughy paste, cooked with a potpie; -- also called dumpling.
The exterior portion of the earth, formerly universally supposed to inclose a molten interior.
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.
To cover with a crust; to cover or line with an incrustation; to incrust.
To gather or contract into a hard crust; to become incrusted.
Source: Webster's dictionaryThe bread crusted in the oven Source: Internet
According to J.D.A. Piper, Rodinia is one of two models for the configuration and history of the continental crust in the latter part of Precambrian times. Source: Internet
A crust formed when the molten outer layer of Earth cooled to form a solid as the accumulated water vapor began to act in the atmosphere. Source: Internet
A layer of vanilla ice cream is spread evenly over a baked pie crust, and then topped with a heavenly spiced-pumpkin puree mixed with fresh whipped cream. Source: Internet
After the ice sheet or glacier melts, the mantle begins to flow back to its original position, pushing the crust back up. Source: Internet
Although Triton's crust is made of various ices, its subsurface processes are similar to those that produce volcanoes and rift valleys on Earth, but with water and ammonia as opposed to liquid rock. Source: Internet