aphtha

Definitions

1. Candidiasis, oral thrush, thrush (fungal infection of the mucous membranes of the mouth caused by any species of yeast from the genus Candida).
   countable, uncountable
2. An oral ulcer, disregarding the cause.
   countable, uncountable
3. Foot-and-mouth disease.
   countable, uncountable

Equivalents

CEFR level