[1] : The Collaborative International Dictionary of English v.0.48

igneous \ig"neous\, a. l. igneus, fr. ignis fire; allied to
   skr. agni, lith. ugnis, oslav. ogne.
   1. pertaining to, having the nature of, fire; containing
      fire; resembling fire; as, an igneous appearance.
      1913 webster

   2. geol. resulting from, or produced by, the action of
      fire; as, lavas and basalt are igneous rocks.
      1913 webster

[2] : WordNet (r) 2.0

igneous
     adj 1: 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" syn: pyrogenic,
             pyrogenous
     2: like or suggestive of fire; "the burning sand"; "a fiery
        desert wind"; "an igneous desert atmosphere" syn: fiery
see also:
pyrogenic pyrogenous fiery 

Igneous >> I Words
Igneous, definition of term: Igneous
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Igneous Rock >> I Words
Igneous Rock, definition of term: Igneous Rock
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