mouth ulcer

noun

: a small painful sore inside the mouth

Dictionary Entries Near mouth ulcer

Cite this Entry

“Mouth ulcer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouth%20ulcer. Accessed 14 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!