Meaning of baseplate

base•plate

Pronunciation: (bās'plāt"), [key]
— n.
  1. bedplate.
    1. a sheet of plastic material for making trial denture plates.
    2. the portion of a denture in contact with the jaw.
  2. a plate of metal to be clad with another metal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.