canker sore
noun/ˈkæŋkə sɔː(r)/
/ˈkæŋkər sɔːr/
(also canker)
(both North American English) (British English mouth ulcer)
- a small painful area in the mouth
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
canker sore