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A chemical used in photography to change a latent image into a visible image by reducing the light-exposed, silver halide particles to metallic silver. Common developing agents are Hydroquinone, Pyrogallic acid, and p-phenylenediamine.
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998