thoria

noun

tho·​ria ˈthȯr-ē-ə How to pronounce thoria (audio)
: a powdery white oxide of thorium ThO2 used especially as a catalyst and in crucibles and refractories and optical glass

Word History

Etymology

New Latin, from thorium + -a

First Known Use

circa 1841, in the meaning defined above

Time Traveler
The first known use of thoria was circa 1841

Dictionary Entries Near thoria

thoreaulite

thoria

thorianite

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Cite this Entry

“Thoria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thoria. Accessed 1 Dec. 2024.

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