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hydrosulfurous

or hy·dro·sul·phu·rous

[ hahy-droh-suhl-fyoor-uhs, -druh-suhl-fer-uhs ]
/ ˌhaɪ droʊ sʌlˈfyʊər əs, -drəˈsʌl fər əs /
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adjective
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Origin of hydrosulfurous

First recorded in 1850–55; hydro-2 + sulfurous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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