Definitions

from The Century Dictionary and Cyclopedia

  • n. In photography, a chemical solution, usually of hyposulphite of soda in water, for removing from an exposed and developed negative or positive the remaining portion of the sensitive agent which has not been acted upon by light.
  • n. In leather manufacturing, a bath of water acidified with nitric acid and to which a little glycerin is added, used in the process of tanning with catechu after the catechu-bath, and followed by a final rinsing to remove any free acid from the leather.

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