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Adjective: igneous  igneeus
  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, pyrogenous
     
  2. Produced by the action of fire or intense heat
    "rocks formed by igneous agents"
    - eruptive
     
  3. Like or suggestive of fire
    "an igneous desert atmosphere"
    - fiery

See also: heat, hot

Antonym: aqueous

Encyclopedia: Igneous