crust


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Related to crust: Eye crust, Pizza crust

crust

1. Geology the solid outer shell of the earth, with an average thickness of 30--35 km in continental regions and 5 km beneath the oceans, forming the upper part of the lithosphere and lying immediately above the mantle, from which it is separated by the Mohorovicić discontinuity
2. the dry covering of a skin sore or lesion; scab
3. Oenology a layer of acid potassium tartrate deposited by some wine, esp port, on the inside of the bottle
4. Biology the hard outer layer of such organisms as lichens and crustaceans

crust

The outermost solid layer of a terrestrial planet or a satellite, consisting of rock, ice, or a mixture of the two. See also Earth.

Crust

 

in plants, a complex of tissues on the surface of the stem and roots of woody plants, consisting of dead peridermal cells and parts of the bark. The crust forms as layers of periderm repeatedly form in the phloem. In the case of more or less concentric arrangement of peridermal layers, a ringed crust forms (as in mock orange and grapes); if the peridermal layers overlap, a scaly crust forms (as in oak). Depending on the nature of the depositing of crust, it falls from the surface of the tree in layers, ribbons, or scales. Crust usually forms late (in birch, pine, and oak when the tree is 25–35 years old); it protects the plant from excessive evaporation, sharp fluctuations of temperature, and other undesirable effects.

crust

[krəst]
(geology)
The outermost solid layer of the earth, mostly consisting of crystalline rock and extending no more than a few miles from the surface to the Mohorovičić discontinuity. Also known as earth crust.
(hydrology)
A hard layer of snow lying on top of a soft layer.
References in periodicals archive ?
They believed it was because the crust that forms on ocean floors reacts with the sea to form carbonate minerals.
More than half (55 per cent) of Scottish parents said their offspring did not eat their crusts simply because they were being picky.
Brotherson JD, Rushforth SR, Johansen JR (1983) Effects of long-term grazing on cryptogam crust cover in Navajo National Monument, Ariz.
The rocky crust there is between 3.7 and 3.8 billion years old.
So we worked hard to hit all those buttons with DiGiorno Harvest Wheat Crust Pizza."
The flavor selections include the finest meats, fresh-cut vegetables, flavorful cheeses and delicious spices that when coupled with the proprietary "freshbaked" thin crust formula known with Red Baron[R] products, create an irresistible taste unique to frozen pizza.
For a nuttier crust, use walnut oil or add wheat germ.
This means 35% of mothers cut the crusts off their children's sandwiches wasting up to 45% of the loaf, the research showed.
The company has described its Invisible Crust as a 'world-first' because it requires a new baking process.
That gives the magma buoyancy (upward force on a floating object)--and a smooth ride from the mantle into the crust.
The northern Cordillera exhibits the same gross crustal structure, except that the thickest crust occurs ~100 to 150 km east of the deformation front.
With a higher rsp of 3.79 [pounds sterling] (5.48 [euro]) to reflect the added value of the product, Freschetta Sauce Filled Crust is designed to bring innovation to the 12" (30cm) pizza category, says Schwan's,