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thiosulfuric acid

noun Chemistry.
  1. an acid, H2S2O3, that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
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Origin of thiosulfuric acid

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

thiosulfuric acid in Medicine

thiosulfuric acid

(thī′ō-sŭl-fyurĭk)
n.
  1. An acid formed by replacement of an oxygen atom by a sulfur atom in sulfuric acid, known only in solution or by its salts and esters.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.