aphthous ulcer

1. 1.

   a blister on the mucous membranes of the lips or mouth or gastrointestinal tract

   Broaderulcer

Questions about aphthous ulcer

What does aphthous ulcer mean?

aphthous ulcer means "a blister on the mucous membranes of the lips or mouth or gastrointestinal tract".

Is aphthous ulcer a common word?

aphthous ulcer is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.