noun
- molten rock material beneath the earth’s surface
Usage: geology
Examples
- The volcano erupted when magma reached the surface.
- Scientists study magma chambers deep underground.
- Hot magma flows through cracks in the earth’s crust.
- When magma cools, it forms igneous rock.
- The magma temperature can exceed 2000 degrees Fahrenheit.
- Pressure forces magma upward through volcanic vents.