The Collaborative International Dictionary
Apyrexia
Apyrexia \Ap`y*rex"i*a\, Apyrexy \Ap`y*rex`y\, n. [NL. apyrexia, fr. Gr. ?; 'a priv. + ? to be feverish, fr. ? fire: cf. F. apyrexie.] (Med.) The absence or intermission of fever.
Wiktionary
apyrexia
n. (context medicine English) The absence or intermission of fever.