bolt head

noun

1

: the head of a bolt

2

: matrass

3

: the end of a rifle bolt that seats the cartridge in the chamber

Word History

Etymology

Middle English bolthed, from bolt entry 1 + hed head

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now