air wrench

noun

: a ratchet wrench that uses compressed air to apply torque : a pneumatically powered impact wrench

Lathes run, drills spin, air wrenches whir and whine from every angle.

—Scott Huler, A Little Bit Sideways, 1999

Word History

First Known Use

1919, in the meaning defined above

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