sodium thiosulfate

noun Chemistry.

a white, crystalline, water-soluble powder, Na2S2O3⋅5H2O, used as a bleach and in photography as a fixing agent.
Also called hypo, hyposulfite, sodium hyposulfite.

Origin of sodium thiosulfate

First recorded in 1880–85

Words nearby sodium thiosulfate

sodium sulfide, sodium sulfite, sodium sulphate, sodium tetraborate, sodium thiocyanate, sodium thiosulfate, sodium thiosulphate, sodium tripolyphosphate, sodium-potassium pump, sodium-vapor lamp, sodium-vapour lamp

Medical definitions for sodium thiosulfate

sodium thiosulfate

n.

A translucent crystalline compound used in conjunction with sodium nitrite as an antidote in cyanide poisoning, as a fungicide in swimming pools and baths, and as a means to measure the extracellular fluid volume of the body.