thiosulfuric acid

noun thio·sulfuric acid \"+...-\

Definition of thiosulfuric acid

  1. :  an unstable acid H2S2O3 derived from sulfuric acid by replacement of one oxygen atom by sulfur and known only in solution or in the form of salts and esters

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Origin and Etymology of thiosulfuric acid

thiosulfuric from thi- + sulfuric

Seen and Heard

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a brief usually trivial fact

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