Definition of Extrusive

describes rock material that was made when magma was pushed out through holes in the earth's surface

Examples of Extrusive in a sentence

After the lava cooled extrusive slabs of rock were scattered around the outer edge of the volcano.  🔊

Every year, a large amount of extrusive rock is made from erupting volcanoes that spew hot lava onto the earth’s surface.  🔊

Volcanic bombs are huge pieces of extrusive rock that are formed when volcanos erupt, cooling before they ever hit the ground.  🔊

Igneous rocks are considered extrusive since they are made when made when magma was pushed out through holes in the earth's surface.  🔊

Made from molten lava and ash, the extrusive rock has a unique color and texture.  🔊

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