canker
noun /ˈkæŋkə(r)/
/ˈkæŋkər/
- [uncountable] a disease that destroys the wood of plants and trees
- Cut out lesions on branches caused by canker.
- [countable] a damaged area in a plant or tree caused by disease or injury
- Check trees for cankers.
- (also canker sore (both North American English), British English mouth ulcer)a small painful area in the mouth
- [uncountable] a disease that causes painful areas in the ears of animals, especially dogs and cats
- [countable] (literary) an evil or dangerous influence that spreads and affects people’s behaviourTopics Dangerc2
Word OriginMiddle English (denoting a tumour): from Old French chancre, from Latin cancer ‘crab’ (see cancer).