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igneous

adjective

ig·​ne·​ous ˈig-nē-əs How to pronounce igneous (audio)
1
a
: formed by solidification of magma
igneous rock
b
: relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity
2
: of, relating to, or resembling fire : fiery

Example Sentences

Recent Examples on the Web During its first scientific campaign, the rover explored the crater’s floor, finding igneous rock. Julia Musto, Fox News, 16 Sep. 2022 In an early surprise, the rover found igneous rock well away from the rim of Jezero Crater where scientists had expected to find sedimentary lakebed layers. William Harwood, CBS News, 15 Sep. 2022 Lindy Elkins-Tanton is a Siberian-river-running, arc-welding, code-writing, patent-holding, company-founding, asteroid-exploring, igneous petrologist professor. Howard Lee, Ars Technica, 2 July 2022 Studies have consistently implicated the Siberian Traps igneous event as the ultimate instigator of the end-Permian mass extinction, in large part because of the composition of the rocks in the area. Chris Mays, Scientific American, 23 June 2022 The granite was formed as intrusive igneous rock approximately 350 million years ago. Walter Nicklin, Washington Post, 16 June 2022 Devils Tower is a massive, 867-foot column of igneous rock towering above the Wyoming plains. Outside Online, 2 Mar. 2022 Those observations revealed large grains of olivine, an igneous mineral that can accumulate at the bottom of a large lava flow. New York Times, 15 Feb. 2022 The castle's outer walls, built from stern igneous rock, and the black-walled keep stand in stark contrast to the 800 cherry blossom trees that paint its gardens pink each spring. CNN, 19 Jan. 2022 See More

Word History

Etymology

Latin igneus, from ignis fire; akin to Sanskrit agni fire

First Known Use

1664, in the meaning defined at sense 2

Time Traveler
The first known use of igneous was in 1664

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