plateholder: Meaning and Definition of

plate•hold•er

Pronunciation: (plāt'hōl"dur), [key]
— n.
  1. a lightproof container for a photographic plate, loaded into the camera with the plate and having a slide that is removed before exposing.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
plate glass platelet
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