Definition of plateholder

  1. 1 :  one that holds plates; especially :  one that places plates for molds

  2. 2 :  a flat lighttight container in which a light-sensitive photographic plate may be held in a camera and may be exposed by removal of a slide

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up plateholder? Please tell us where you read or heard it (including the quote, if possible).


to criticize severely

Get Word of the Day daily email!