Definition of apple canker
: any of several diseases of the apple tree that produce cankers (such as bark canker, bitter rot, black rot, blister canker, European canker, fire blight, or perennial canker)
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up apple canker? Please tell us where you read or heard it (including the quote, if possible).