Ajax powder


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

Word History


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

Time Traveler
The first known use of Ajax powder was in 1885

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Ajax powder

Cite this Entry

“Ajax powder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ajax%20powder. Accessed 25 Jun. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!