in medicine, an inflammation of the membranes of the brain, attended with an acute fever and delirium. See Medicine, p. 88.

PHYRGIA, the Greater and Lesser, two provinces anciently of Asia Minor; having the Hellefsont on the north.

PIITHIRIASIS, in medicine, the pedicularis morbus, or lousy disease, is most incident to children, though adults are not wholly exempt from it.