arsenious

adjective

ar·​se·​ni·​ous är-ˈsē-nē-əs How to pronounce arsenious (audio)
: of, relating to, or containing arsenic especially when trivalent

Word History

Etymology

borrowed from French arsénieux, from arsenic arsenic entry 1 + -ieux -ious

First Known Use

1796, in the meaning defined above

Time Traveler
The first known use of arsenious was in 1796

Dictionary Entries Near arsenious

arseniosiderite

arsenious

arsenite

See More Nearby Entries 

Cite this Entry

“Arsenious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arsenious. Accessed 5 Nov. 2024.

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Medical Definition

arsenious

adjective
ar·​se·​ni·​ous är-ˈsē-nē-əs How to pronounce arsenious (audio)
variants also arsenous
ˈärs-nəs, -ᵊn-əs How to pronounce arsenious (audio)
: of, relating to, or containing arsenic especially when trivalent
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