Rarely used term for the origin and mode of production of fever. ... Origin: pyreto-+ G. Genesis, origin ... (05 Mar 2000) ... 
(pi″rә-to-jen´ә-sis) the origin and causation of fever.
Type: Term Pronunciation: pī′rĕ-tō-jen′ĕ-sis, pir′ĕ-tō- Definitions: 1. Rarely used term for the origin and mode of production of fever.