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1. Relating to or characteristic of fire.
a. Formed by solidification from a molten state. Used of rocks.
b. Relating to rock so formed; pyrogenic.
[From Latin igneus, from ignis, fire.]
1. (Geological Science) (of rocks) derived by solidification of magma or molten lava emplaced on or below the earth's surface. Compare sedimentary, metamorphic2
2. of or relating to fire
[C17: from Latin igneus fiery, from ignis fire]
ig•ne•ous(ˈɪg ni əs)
1. produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma.
2. of, pertaining to, or characteristic of fire.
[1655–65; < Latin igneus=ign(is) fire + -eus -eous]
Relating to rocks formed by the cooling and hardening of magma or molten lava. Basalt and granite are examples of igneous rocks. See Table at rock.
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|Adj.||1.||igneous - produced under conditions involving intense heat; "igneous rock is rock formed by solidification from a molten state; especially from molten magma"; "igneous fusion is fusion by heat alone"; "pyrogenic strata"|
|2.||igneous - produced by the action of fire or intense heat; "rocks formed by igneous agents"|
geology - a science that deals with the history of the earth as recorded in rocks
|3.||igneous - like or suggestive of fire; "a fiery desert wind"; "an igneous desert atmosphere"|
hot - used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning; "hot stove"; "hot water"; "a hot August day"; "a hot stuffy room"; "she's hot and tired"; "a hot forehead"