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sulfoxide

[ suhl-fok-sahyd ]
/ sʌlˈfɒk saɪd /
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noun Chemistry.
a brown liquid, C18H28O3S, insoluble in water, used as an insecticide synergist.
any of the compounds with the radical =SO, as dimethyl sulfoxide, (CH3)2SO.
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Origin of sulfoxide

First recorded in 1890–95; sulf- + oxide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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