crust

[ kruhst ]

/ krʌst /

noun

the brown, hard outer portion or surface of a loaf or slice of bread (distinguished from crumb).

a slice of bread from the end of a loaf, consisting chiefly of this.

the pastry covering the outside of a pie or other dish.

a piece of stale bread.

any more or less hard external covering or coating: a crust of snow.

Geology. the outer layer of the earth, about 22 miles (35 km) deep under the continents (continental crust)and 6 miles (10 km) deep under the oceans (oceanic crust). Compare mantle(def 3), core¹(def 10).

a scab or eschar.

Slang. unabashed self-assertiveness; nerve; gall: He had a lot of crust going to the party without an invitation.

deposit from wine, as it ripens during aging, on the interior of bottles, consisting of tartar and coloring matter.

the hard outer shell or covering of an animal.

Australian Slang. a living or livelihood: What do you do for a crust?

verb (used with object)

to cover with or as with a crust; encrust.

to form (something) into a crust.

verb (used without object)

to form or contract a crust.

to form into a crust.

Origin of crust

1275–1325; Middle English < Anglo-French, Old French cruste, croste < Latin crusta hard coating, crust

OTHER WORDS FROM crust

crust·less, adjective in·ter·crust, verb (used with object) un·der·crust, noun

Words nearby crust

crush-resistant, crushed velvet, crushproof, crusie, crusoe, crust, crustacean, crustaceous, crustal, crustal plate, crusted

British Dictionary definitions for oceanic crust

crust

/ (krʌst) /

noun

the hard outer part of bread
a piece of bread consisting mainly of this

the baked shell of a pie, tart, etc

any hard or stiff outer covering or surface a crust of ice

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 Mohorovičić discontinuity See also sial, sima

the dry covering of a skin sore or lesion; scab

a layer of acid potassium tartrate deposited by some wine, esp port, on the inside of the bottle

the hard outer layer of such organisms as lichens and crustaceans

slang impertinence

British, Australian and NZ slang a living (esp in the phrase earn a crust)

verb

to cover with or acquire a crust

to form or be formed into a crust

Word Origin for crust

C14: from Latin crūsta hard surface, rind, shell

Medical definitions for oceanic crust

crust

[ krŭst ]

n.

A hard, crisp covering or surface.

An outer layer or coating formed by the drying of a bodily exudate such as pus or blood; a scab.

v.

To cover with, become covered with, or harden into a crust.

Scientific definitions for oceanic crust (1 of 2)

oceanic crust

See under crust.

Scientific definitions for oceanic crust (2 of 2)

crust

[ krŭst ]

The solid, outermost layer of the Earth, lying above the mantle.♦ The crust that includes continents is called continental crust and is about 35.4 to 70 km (22 to 43.4 mi) thick. It consists mostly of rocks, such as granites and granodiorites, that are rich in silica and aluminum, with minor amounts of iron, magnesium, calcium, sodium, and potassium.♦ The crust that includes ocean floors is called oceanic crust and is about 4.8 to 9.7 km (3 to 6 mi) thick. It has a similar composition to that of continental crust, but has higher concentrations of iron, magnesium, and calcium and is denser than continental crust. The predominant type of rock in oceanic crust is basalt.

Cultural definitions for oceanic crust

crust

In geology, the outermost layer of the Earth. It overlies the mantle.

notes for crust

The crust includes the continents and the ocean bottom and is generally estimated to be about five to twenty-five miles thick.

notes for crust

The crust is made from relatively lightweight rocks that floated to the surface when the Earth was molten early in its history.

Idioms and Phrases with oceanic crust

crust

see upper crust.

BROWSE DICTIONARY

Learning

crust

noun

verb (used with object)

verb (used without object)

Origin of crust

OTHER WORDS FROM crust

Words nearby crust

British Dictionary definitions for oceanic crust

noun

verb

Word Origin for crust

Medical definitions for oceanic crust

n.

v.

Scientific definitions for oceanic crust (1 of 2)

Scientific definitions for oceanic crust (2 of 2)

Cultural definitions for oceanic crust

notes for crust

notes for crust

Idioms and Phrases with oceanic crust

BROWSE DICTIONARY

Learning

crust

noun

verb (used with object)

verb (used without object)

Origin of crust

OTHER WORDS FROM crust

Words nearby crust

(adsbygoogle = window.adsbygoogle || []) .push({}); British Dictionary definitions for oceanic crust

noun

verb

Word Origin for crust

Medical definitions for oceanic crust

n.

v.

Scientific definitions for oceanic crust (1 of 2)

Scientific definitions for oceanic crust (2 of 2)

Cultural definitions for oceanic crust

notes for crust

notes for crust

Idioms and Phrases with oceanic crust

British Dictionary definitions for oceanic crust