✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

diether

noun

di·​ether (ˌ)dī-ˈē-thər How to pronounce diether (audio)
: a compound containing two atoms of oxygen with ether linkages

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of diether was in 1950

Cite this Entry

“Diether.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diether. Accessed 30 Nov. 2025.

Love words? Need even more definitions?

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