A lima bean, especially one of a variety with large flat white seeds.
More example sentences
- Even 8-year-old Sasha Krumm, who rode his bike to the garden nearly every day, although his pumpkin never got much bigger than a butter bean.
- It's as tiny as a butter bean and individuals appear to have been exquisitely enamelled by different artists.
- Edamame or butter bean soybeans are varieties that are best used at the green stage, when the seeds have just plumped the pods.
Definition of butter bean in:
- The US English dictionary