Definition of sea bean
1a : any of various beans or showy seeds of tropical origin that are frequently carried by ocean currents to remote shores and often used as ornaments: such as (1) : the large chocolate-colored seed of a snuffbox bean used in poultices and as an emetic (2) : oxeye bean (3) : nicker nut b : a plant producing sea beans
2 : the hard flat rounded calcareous operculum of any of various mollusks (as those of the family Turbinidae)
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 sea bean? Please tell us where you read or heard it (including the quote, if possible).