[adjective] 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" Synonyms:pyrogenic, pyrogenous
[adjective] like or suggestive of fire; "the burning sand"; "a fiery desert wind"; "an igneous desert atmosphere" Synonyms:fiery
