igneous

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adjective ig·ne·ous \ˈig-nē-əs\

Definition of igneous

  1. 1 :  of, relating to, or resembling fire :  fiery

  2. 2a :  relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activityb :  formed by solidification of magma <igneous rock>

Origin and Etymology of igneous

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


First Known Use: 1664


IGNEOUS Defined for English Language Learners

igneous

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adjective ig·ne·ous \ˈig-nē-əs\

Definition of igneous for English Language Learners

  • : formed when hot, liquid rock cools and becomes hard


IGNEOUS Defined for Kids

igneous

play
adjective ig·ne·ous \ˈig-nē-əs\

Definition of igneous for Students

  1. :  formed by hardening of melted mineral material within the earth <igneous rock>

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