1. a person or animal that runs away suddenly
2. a horse that runs away with its rider
3. a sieve or strainer used to separate fine particles from coarse ones

Examples

• The young horse was known as a bolter and required an experienced rider.
• She used a flour bolter to remove any lumps from the mixture.
• The senator became a bolter when he disagreed with his party’s platform.
• The dog was a bolter who would escape whenever the gate was left open.
• The miller’s bolter separated the fine flour from the coarser grain.
• After the scandal, several members became bolters and formed their own group.