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
Scientists suspect magma bubbling up from Mars’ interior formed the labyrinthian valleys, but the details are up for debate.
—
Jackie Wattles, CNN, 29 Mar. 2024
However, what has changed is that magma rising up into the crust does not appear to be stalling on the way to the surface.
—Erik Klemetti, Discover Magazine, 27 Mar. 2024
The Icelandic Met Office earlier this week warned of a possible eruption after monitoring a buildup of magma, or semi-molten rock, below the ground for the past three weeks.
—Marco Di Marco, Quartz, 8 Feb. 2024
Volcanic eruptions occur when magma pushes up from the Earth’s crust, forming lava at the surface.
—Denise Chow, NBC News, 13 Nov. 2023
This is the process that generates the magma that comes to the surface in the form of lava.
—Smithsonian Magazine, 3 Jan. 2024
An Icelandic coast guard helicopter flies over erupting magma early Tuesday.
—Denise Chow, NBC News, 19 Dec. 2023
Roughly speaking, that is about 1.5 oil supertankers of magma every 24 hours.
—Erik Klemetti, Discover Magazine, 29 Feb. 2024
That day, another noisy flow of magma left the sill and overfilled the dike.
—Robin George Andrews, Quanta Magazine, 20 Feb. 2024
Jackie Wattles, CNN, 29 Mar. 2024
However, what has changed is that magma rising up into the crust does not appear to be stalling on the way to the surface.
—Erik Klemetti, Discover Magazine, 27 Mar. 2024
The Icelandic Met Office earlier this week warned of a possible eruption after monitoring a buildup of magma, or semi-molten rock, below the ground for the past three weeks.
—Marco Di Marco, Quartz, 8 Feb. 2024
Volcanic eruptions occur when magma pushes up from the Earth’s crust, forming lava at the surface.
—Denise Chow, NBC News, 13 Nov. 2023
This is the process that generates the magma that comes to the surface in the form of lava.
—Smithsonian Magazine, 3 Jan. 2024
An Icelandic coast guard helicopter flies over erupting magma early Tuesday.
—Denise Chow, NBC News, 19 Dec. 2023
Roughly speaking, that is about 1.5 oil supertankers of magma every 24 hours.
—Erik Klemetti, Discover Magazine, 29 Feb. 2024
That day, another noisy flow of magma left the sill and overfilled the dike.
—Robin George Andrews, Quanta Magazine, 20 Feb. 2024
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 1 May. 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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