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Webster 1913 Edition
Aphthae
‖
Aph′thæ
,Noun.
pl.
[L., fr. Gr. [GREEK] (mostly in pl. [GREEK], Hipp.) an eruption, thrush, fr. [GREEK] 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.