\Er`y*sip"e*las\, n. [L., fr. Gr. 'erysi`pelas; 'eryqro`s red + pe`lla hide, skin. See {Red}, and {Pell}, n.] (Med.) St. Anthony's fire; a febrile disease accompanied with a diffused inflammation of the skin, which, starting usually from a single point, spreads gradually over its surface. It is usually regarded as contagious, and often occurs epidemically.