outer core

Definitions

(Noun) the layer of the Earth that is a liquid. It is composed of iron and nickel.

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30.8% of Earth's mass; depth of 2,890-5,150 kilometers (1,806 - 3,219 miles), the outer core is a hot, electrically conducting liquid within which convective motion occurs. This conductive layer combines with Earth's rotation to create a dynamo effect that maintains a system of electrical currents known as the Earth's magnetic field.

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a liquid layer just outside the center of the Earth

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(Noun) The outermost rigid layer of the Earth or upper part of the mantle.

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(Noun) the outermost layer of the earth