magma
noun
molten material beneath or within the earth's crust, from which igneous rock is formed.
magmas
-
pluralof magma.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It is the world's only active carbonatite volcano, producing lava that is unusually fluid and relatively cool at about 550 degrees Celsius, compared to the 650 to 1,200 degrees typical of most magmas.
From Science Daily ● Oct. 27, 2025
The team took this as evidence that these two sets of zircons formed from shallow magmas that interacted with freshwater.
From Science Magazine ● Apr. 30, 2024
The chemical composition of the crystals, plucked from rocks in Australia, hint that they formed from magmas doped with freshwater, a team of scientists argues.
From Science Magazine ● Apr. 30, 2024
Both results clearly demonstrate how the melt-solid reaction is integral in understanding the formation of these unique magmas.
From Science Daily ● Jan. 15, 2024
When magmas reach the surface red hot, they form extrusive rocks, such as volcanic rocks.
From Let's Collect Rocks and Shells by Shell Union Oil Corporation
