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igneous rock

Cultural  
  1. Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth's surface, or at its surface, as lava.


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Granite, solid volcanic lava, and basalt are examples of igneous rock.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Now if you were awake in high school science class, you’re thinking, igneous rock: volcanic lava.

From Los Angeles Times • May 3, 2024

One popular theory suggests that minerals released by the weathering of igneous rock sucked enough carbon dioxide from the atmosphere to set off a deep freeze.

From New York Times • Feb. 7, 2024

Which dark igneous rock is the most common rock formed from volcanic lava?

From Slate • Nov. 16, 2023

Collected in September 2021, the rover’s first sample is thought to be igneous rock from an ancient lava flow.

From Scientific American • Apr. 5, 2023

As I sit on a fragment of igneous rock and look around me, I indeed feel that "the singer is less than his themes."

From Australian Pictures Drawn with Pen and Pencil by Willoughby, Howard

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