hyposulfite

or hy·po·sul·phite

[hahy-puh-suhl-fahyt]

noun

Also called hydrosulfite. a salt of hyposulfurous acid.
sodium thiosulfate.

Origin of hyposulfite

First recorded in 1820–30; hypo- + sulfite

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hyposulphite

Historical Examples of hyposulphite

The hyposulphite, however, is the safest, both for the plate and for the operator.
Photography in the Studio and in the Field
Edward M. Estabrooke
I did not determine how much was hyposulphite and how much sulphate.
The Catholic World; Vol. IV.; October, 1866, to March, 1867.
E. Rameur
The hyposulphite arrests the action of the sulphide and acts as an antiseptic.
Leather
K. J. Adcock
Dissolve the hyposulphite of soda in 10,000 grain-measures of water.
Cooley's Practical Receipts, Volume II
Arnold Cooley
There are, of course, certain other impurities of chloroform which the hyposulphite will not remove.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I
Arnold Cooley

British Dictionary definitions for hyposulphite

hyposulphite

noun

another name for sodium thiosulphate, esp when used as a photographic fixerOften shortened to: hypo
another name for dithionite

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012