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Definitions

igneous

[ig-nee-uhs] / ˈɪg ni əs /


ADJECTIVE
molten
Synonyms


ADJECTIVE
plutonic
Synonyms






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.

Heavy rare earths are formed over millions of years, as rainfall weathers igneous rocks, breaking them down and leaving elements concentrated near the surface.

From Barron's • Dec. 21, 2025

Now if you were awake in high school science class, you’re thinking, igneous rock: volcanic lava.

From Los Angeles Times • May 3, 2024

Zalasiewicz points out that some rocks originate as liquid, as when lava cools and solidifies into igneous rocks; these rocks form quickly.

From Slate • Apr. 27, 2024

Among the new discoveries was finding primary igneous rocks in Jezero Crater.

From Science Daily • Feb. 22, 2024

He seems to have regarded the soul as composed of igneous matter, and so approximates the orthodox Pythagorean doctrine of the central fire, or Hestia, to the more detailed theories of Heraclitus.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 5 "Hinduism" to "Home, Earls of" by Various




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