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short for hyposulfite thiosulfate
Late Latin hypo-, hyp-, from Greek, from hypo — more at up
1709, in the meaning defined above
1855, in the meaning defined above
1925, in the meaning defined at sense 1
1942, in the meaning defined above
“Hypo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypo. Accessed 1 Oct. 2022.
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