Pityriasis
Pronunciation : Pit`y*ri"a*sis
Part of Speech : n.
Etymology : [NL., fr. Gr. (Med.)
Definition : Defn: A superficial affection of the skin, characterized by irregular patches of thin scales which are shed in branlike particles. Pityriasis versicolor Etym: [NL.] (Med.), a parasitic disease of the skin, characterized by the development of reddish or brownish patches.
Source : Webster's Unabridged Dictionary, 1913