the GNU version of the Collaborative International Dictionary of English
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.
Word Usage
"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."