Definition of Jonah crab
: a large reddish crab (Cancer borealis) of the eastern coast of North America that is sometimes found along rocky shores but is more common in deep water
What's Trending Now
More Trending Words
There's more!
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 Jonah crab? Please tell us where you read or heard it (including the quote, if possible).
