baseplate

[beys-pleyt]
noun
2.
Dentistry.
a.
a sheet of plastic material for making trial denture plates.
b.
the portion of a denture in contact with the jaw.
3.
Metallurgy. a plate of metal to be clad with another metal.

Origin:
1875–80; base1 + plate1

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

baseplate base·plate (bās'plāt')
n.

  1. The portion of an artificial denture in contact with the jaw.

  2. A temporary form representing the base of a denture and used to help establish jaw relationships and the arrangement of teeth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Baseplate is so streamlined you can't tell it's there when the teapot is on it.
The tibial baseplate is indicated for cemented use only.
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