interior ballistics

noun plural but usually singular in construction

: a branch of ballistics that deals with the combustion of powder in a gun, the pressure developed, and the motion of the projectile along the bore of the gun compare exterior ballistics

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