Magma definition

măgmə
Frequency:
(geology) The molten rock material under the earth's crust, from which igneous rock is formed by cooling.
noun
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A pasty mixture of crude mineral or organic matter.
noun
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A mixture of finely divided solids with enough liquid to produce a pasty mass.
noun
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3
(pharmacology) A suspension of particles in a liquid, such as milk of magnesia.
noun
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(pharmacology) A suspension of particles in a liquid, such as milk of magnesia.
noun
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3
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The molten rock material that originates under the Earth's crust and forms igneous rock when it has cooled. When magma cools and solidifies beneath the Earth's surface, it forms what are known as intrusive rocks. When it reaches the Earth's surface, it flows out as lava and forms extrusive (or volcanic) rocks.
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Liquid or molten rock deep in the earth, which on cooling solidifies to produce igneous rock.
noun
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(pharmacy) A suspension of precipitated matter in a watery substance.
noun
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(archaic) The residue of fruits after the juice has been expressed; pomace.
noun
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(geology) The molten matter within the earth, the source of the material of lava flows, dikes of eruptive rocks, etc.
noun
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(mathematics) A basic algebraic structure consisting of a set equipped with a single binary operation.
noun
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The definition of magma is the molten rock material under the Earth's crust or a suspension of particles in a liquid.

An example of magma is what comes out of a volcano.

An example of magma is a mixture of water with salt particles hanging in it.

noun
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Other Word Forms

Noun

Singular:
magma
Plural:
magmas

Origin of magma

  • Middle English sediment, dregs from Latin from Greek unguent from massein mag- to knead mag- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek μάγμα (magma, “paste”).

    From Wiktionary