HYPO (2)
Source: 567
Hy″po, n. [[Abbrev. from hyposulphite.]] (Photog.) Sodium hyposulphite, or thiosulphate, a solution of which is used as a bath to wash out the unchanged silver salts in a picture.
Source: 567
Hy″po, n. [[Abbrev. from hyposulphite.]] (Photog.) Sodium hyposulphite, or thiosulphate, a solution of which is used as a bath to wash out the unchanged silver salts in a picture.