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noun

crust

the outer layer of the Earth

In a sentence

Six example sentences with crust, each labelled with its topic.

  • Beneath the ocean the crust is only six kilometers thick, a fraction of what sits under a continent.

    Science

  • Drilling projects have never got through the crust, so almost everything below it is inferred from earthquake waves.

    Environment

  • Geologists warned that the crust here slips a few centimeters each decade, so the tower rests on sliding bearings.

    Architecture

  • In Iceland you can walk through a rift where the crust is pulling apart a couple of centimeters every year.

    Travel

  • The deepest borehole ever drilled went twelve kilometers into the crust before the heat made the rock too soft to continue.

    Technology

  • The mining game lets you dig through the entire crust in an afternoon, which no real drill has ever managed.

    Gaming

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