| 释义 |
‖ pityriasis|pɪtɪˈraɪəsɪs|
[mod.L., a. Gr. πιτῡρίασις scurf (Galen), f. πίτῡρον bran.]
1. Path. A condition of the skin characterized by the formation and falling off of irregular patches of small bran-like scales, without inflammation; the (diseased) formation of dandruff or scurf.
1693Blancard's Phys. Dict. (ed. 2), Pityriasis, vid. Furfurratio. 1706Phillips, Pityriasis, the falling of Dandriff or Scurf from the Head. 1818–20E. Thompson Cullen's Nosol. Method. (ed. 3) 323 In the slighter forms of Pityriasis, the cuticle alone..appears to be in a morbid condition. 1864W. T. Fox Skin Dis. 36 Pityriasis is a purely epithelial disease (except in the rare form P. rubra).
2. Ornith. A genus of birds of the family Corvidæ, inhabiting Borneo and Sumatra, containing one species P. gymnocephalus. So called from the scales with which the naked head is covered.
1893Newton Dict. Birds 362 There seem to be only four unquestionable peculiar genera [in Borneo] Pityriasis, a singular form generally referred to the Laniidæ, Schwaneria belonging to Muscicapidæ, [etc.]. |