noun plural. Roundish pearl-colored specks or flakes in the mouth, on the lips, etc., terminating in white sloughs. They are commonly characteristic of thrush.

noun. Plural form of aphtha.

"In the different ages the following complaints occur: to little and new-born children, aphthae, vomiting, coughs, sleeplessness, frights inflammation of the navel, watery discharges from the ears."