igneous rocks (0 synonym found)

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igneous rock

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Definition of igneous rocks:

(n) : (geology) One of the major groups of rock that makes up the crust of the Earth; formed by the cooling of molten rock, either below the surface (intrusive) or on the surface (extrusive).
Definition of igneous rocks:

(n) : (geology) One of the major groups of rock that makes up the crust of the Earth; formed by the cooling of molten rock, either below the surface (intrusive) or on the surface (extrusive).
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