Magma

usgb/ˈmæɡmə/
noun

Hot liquid rock found under the earth's surface.

Volcanoes erupt when magma rises to the surface.
Visual representation of "magma" - Hot liquid rock found under the earth's surface

Often appears as...

  • magma chamber
  • molten magma

Usage tips

Technical

Definition 1 of 2
Visual representation of "magma"
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Geological Term

Used mainly in geology or earth sciences; may not be common in everyday conversation.

Illustration for Geological Term
Geologists study magma to understand volcanic activity.
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Internal Heat

Implies intense heat as magma originates from deep within the Earth's mantle.

Illustration for Internal Heat
The drill reached depths where the heat of the magma could be felt.
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Not Lava Yet

Remember, magma refers to molten rock beneath the Earth's surface, not after it erupts.

Illustration for Not Lava Yet
Magma turns into lava once it exits a volcano.
Visual representation of the word "Magma"

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