aphtha

(af′thă)

(af′thē)
pl. aphthae [Gr. aphtha, small ulcer]
A small ulcer on a mucous membrane of the mouth, as in thrush.
aphthic (-thik), adj.

Bednar's aphthae

SEE: Bednar aphthae

cachectic aphtha

A lesion formed beneath the tongue and accompanied by severe constitutional symptoms.