thiosulfate
nounUK /ˌθaɪəʊˈsʌlfeɪt/
US /ˌθaɪoʊˈsʌlfeɪt/
A chemical salt that contains sulfur and is often used to stop photographic film from changing.
The photographer mixed a thiosulfate solution to fix the developed film.
RELATED WORDS
OTHER MEANINGS
2. A salt or ester of thiosulfuric acid.
Sodium thiosulfate is a common thiosulfate used in laboratories.
3. A compound used to neutralize chlorine in water.
Aquarium keepers add thiosulfate to make tap water safe for fish.
4. A chemical used in medical treatments for cyanide poisoning.
Doctors gave the patient thiosulfate to help treat cyanide exposure.