arsenous

[ ahr-suh-nuhs ]
/ ˈɑr sə nəs /

adjective Chemistry.

containing arsenic in the trivalent state, as arsenous chloride, AsCl3.
of or derived from arsenous acid.

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What does “barren” mean?
Also arsenious.

Origin of arsenous

First recorded in 1790–1800; arsen- + -ous

WORDS THAT MAY BE CONFUSED WITH arsenous

arsenous , arsonous.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020