n. [ See Pyrogenous. ]
a. [ Pyro- + -gen + -ic. ] (Physiol.) Producing heat; -- said of substances, as septic poisons, which elevate the temperature of the body and cause fever. [ 1913 Webster ]
a. [ Gr. &unr_; fire + genous: cf. F. purogène, Gr. &unr_;. ] Produced by fire; igneous. Mantell. . [ 1913 Webster ]