osmic acid

noun

: osmium tetroxide

Word History

Etymology

osm(ium) + -ic entry 1

First Known Use

1842, in the meaning defined above

Time Traveler

The first known use of osmic acid was in 1842

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Browse Nearby Words

osmic

osmic acid

osmidrosis

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Cite this Entry

Style

“Osmic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/osmic%20acid. Accessed 18 Jul. 2025.

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Medical Definition

osmic acid

noun

os·mic acid ˌäz-mik-

: osmium tetroxide

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