||Aph"thæ (&?;), n. pl. [L., fr. Gr. &?; (mostly in pl. &?;, Hipp.) an eruption, thrush, fr. &?; to set on fire, inflame.] (Med.) Roundish pearl-colored specks or flakes in the mouth, on the lips, etc., terminating in white sloughs. They are commonly characteristic of thrush.