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definitions

dark slide

noun Photography.
  1. Also called draw slide. a black plastic, metal, or fabric sheet that is inserted into a film holder to protect the film from light.
  2. a lightproof holder for sheet film or a photographic plate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for dark slide

Historical Examples of dark slide

  • Moreover, this something evidently had the power of penetrating through the walls of the dark-slide to the plate within.