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hydrosulfite

American  
[hahy-druh-suhl-fahyt] / ˌhaɪ drəˈsʌl faɪt /
Or hydrosulphite

noun

Chemistry.
  1. hyposulfite.

  2. sodium hydrosulfite.


Etymology

Origin of hydrosulfite

First recorded in 1860–65; hydrosulf(urous) + -ite 1