Definition of whole cannon
: a 16th and 17th century cannon throwing a projectile weighing from 70 to 120 pounds — compare demicannon
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 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 whole cannon? Please tell us where you read or heard it (including the quote, if possible).