selenium dioxide

noun

Definition of selenium dioxide

: a poisonous white crystalline compound SeO2 that sublimes to a yellow-green vapor, that is made by oxidation of selenium with nitric acid or air or by dehydration of selenious acid, and that is used chiefly as a catalyst and an oxidizing agent in organic chemistry (as for oxidizing a methylene group next to a carbonyl group to a second carbonyl group)

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Learn More About selenium dioxide

Dictionary Entries Near selenium dioxide

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selenium dioxide

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“Selenium dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/selenium%20dioxide. Accessed 20 Oct. 2021.

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