magma

IPA: mˈægmʌ

(geology) The molten matter within the earth, the source of the material of lava flows, dikes of eruptive rocks, etc.
(mathematics) A basic algebraic structure consisting of a set equipped with a single binary operation.
Any soft doughy mass.
The residuum after expressing the juice from fruits.

Examples of "magma" in Sentences

They form when molten rock called magma up and breaks through a weak area
Pockets of hot molten rock called magma collect beneath the surface of the Earth.
Instead, it will collect into huge underground reservoirs known as magma chambers.
The mystery lies in the origin of the magma, which is molten rock that forms within the Earth.
Now scientist first thought magma, which is lava that hasn't yet made it to the ground wasn't moving to the surface.
There were countless miles of lava tunnels there, left by retreating magma from a time when the Moon was a burning young rock.
The resultant body of molten liquid, called magma, will solidify to produce the igneous rock, granite, but if it is still in liquid form as it approaches the surface, lava results.
And then this tremor that everybody's talking about, it lasted for about 50 minutes, meaning that the lava or the magma, which is lava that's below the surface, is actually making its way up towards the surface.