thiosulfate

noun

thio·​sul·​fate ˌthī-ə-ˈsəl-ˌfāt How to pronounce thiosulfate (audio)
: a salt containing the anion S2O32−

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1872, in the meaning defined above

Time Traveler
The first known use of thiosulfate was circa 1872

Phrases Containing thiosulfate

Dictionary Entries Near thiosulfate

thiospirillum

thiosulfate

thiosulfato-

See More Nearby Entries 

Cite this Entry

“Thiosulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thiosulfate. Accessed 31 Oct. 2024.

Copy Citation

Share

Medical Definition

thiosulfate

noun
thio·​sul·​fate
variants or chiefly British thiosulphate
-ˈsəl-ˌfāt How to pronounce thiosulfate (audio)
: a salt or ester of thiosulfuric acid
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See All

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Plural and Possessive Names: A Guide

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?
See All

Popular in Wordplay

See All

Weird Words for Autumn Time

What does 'at large' mean?

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments

10 Words from Taylor Swift Songs (Merriam's Version)
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night