di·​op·​side dī-ˈäp-ˌsīd How to pronounce diopside (audio)
: a green to white mineral that consists of pyroxene containing little or no aluminum
diopsidic adjective

Examples of diopside in a Sentence

Recent Examples on the Web Other magnesium-bearing minerals include carnallite, cordierite, and diopside. David Bressan, Forbes, 31 Dec. 2022 This one—with its boulder opal center surrounded by diamonds and four diopsides—is particularly stunning. Lane Florsheim, WSJ, 3 Dec. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diopside.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


French, from di- + Greek opsis appearance — more at optic

First Known Use

circa 1808, in the meaning defined above

Time Traveler
The first known use of diopside was circa 1808

Dictionary Entries Near diopside

Cite this Entry

“Diopside.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diopside. Accessed 20 May. 2024.

More from Merriam-Webster on diopside

Love words? Need even more definitions?

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