2
: a thin pasty suspension (as of a precipitate in water)
3
: molten rock material within the earth from which igneous rock results by cooling
Examples of magma in a Sentence
Recent Examples on the Web
The spacecraft measured the ‘pulse’ of seismic waves caused by the flow of magma within the planet, meteorites smacking the surface and tremors from Mars quakes.
—
Elizabeth Gamillo, Smithsonian Magazine, 15 Aug. 2024
After effects of the Biscuit Basin eruption What causes hydrothermal eruptions
According to the USGS, when water in the underground chambers is heated by bodies of magma, the water can quickly flash to steam.
—Janet Loehrke, USA TODAY, 10 Aug. 2024
Supercritical geothermal takes the concept to the next level by either finding pockets of magma near the surface at a depth of as little as 2 km (1.2 miles) or seeking the hot inner Earth as deep as 20 km (12.4 miles).
—David Szondy, New Atlas, 6 Aug. 2024
The new find adds detail to the horror that unfolded early morning on the second day of the eruption, after most of the magma had erupted.
—Carolyn Y. Johnson, Washington Post, 18 July 2024
See all Example Sentences for magma 
Elizabeth Gamillo, Smithsonian Magazine, 15 Aug. 2024
After effects of the Biscuit Basin eruption What causes hydrothermal eruptions
According to the USGS, when water in the underground chambers is heated by bodies of magma, the water can quickly flash to steam.
—Janet Loehrke, USA TODAY, 10 Aug. 2024
Supercritical geothermal takes the concept to the next level by either finding pockets of magma near the surface at a depth of as little as 2 km (1.2 miles) or seeking the hot inner Earth as deep as 20 km (12.4 miles).
—David Szondy, New Atlas, 6 Aug. 2024
The new find adds detail to the horror that unfolded early morning on the second day of the eruption, after most of the magma had erupted.
—Carolyn Y. Johnson, Washington Post, 18 July 2024
See all Example Sentences for magma
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'magma.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near magma
Cite this Entry
“Magma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magma. Accessed 16 Sep. 2024.
Copy CitationKids Definition
Medical Definition
magma
noun
mag·ma
ˈmag-mə 
1
: a crude mixture of mineral or organic matter in the state of a thin paste
2
: a suspension of a large amount of precipitated material (as in milk of magnesia) in a small volume of a watery vehicle
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