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The divalent anionic group, S2O3, derived from thiosulfuric acid, or a compound containing this group. Also called hyposulfite.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌθaɪ oʊˈsʌl feɪt)

a salt or ester of thiosulfuric acid.
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References in periodicals archive ?
Thiosulfate ion from a gold (I)-thiosulfate complex was initially reduced to hydrogen sulfide (H[S.sup.-]), as the end product of metabolism.
These silver thiosulfate ion complex resinate compositions are able to release stable antimicrobial silver ion complexes over time when placed in a saline environment.
For example, ANSI/NAPM Standard IT9.17 describes three specific methods that may be used to precisely measure the amount of thiosulfate ion remaining in the emulsion of processed microfilm, which is important to ensure the long-term quality of the images.