Ajax powder

noun

: an explosive used in coal mining consisting chiefly of nitroglycerin, potassium perchlorate, ammonium oxalate, and wood flour

Word History

Etymology

after Ajax, one of the Greek heroes in Homer's Iliad, possessed of great stature and strength, from Latin, from Greek Aias

First Known Use

1885, 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