py·ro·gen·ic /ˌpaɪroˈʤɛnɪk/
  火成的; 焦化; 致熱的
  py·ro·gen·ic /ˌpaɪroˈʤɛnɪk/ 形容詞
  Pyr·o·gen·ic a.  Physiol. Producing heat; -- said of substances, as septic poisons, which elevate the temperature of the body and cause fever.
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  pyrogenic
       adj 1: produced by or producing fever [syn: pyrogenous, pyrogenetic]
       2: 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: igneous, pyrogenous]