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planchet

 - 4 dictionary results

planch⋅et

[plan-chit]
–noun
a flat piece of metal for stamping as a coin; a coin blank.

Origin:
1605–15; planch + -et
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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planch·et   (plān'chĭt)   
n.  
  1. A flat disk of metal ready for stamping as a coin; a coin blank.

  2. A small shallow metal container in which a radioactive substance is deposited for measurement of its activity.


[Diminutive of planch, flat plate, slab, from Middle English plaunche, plank, from Old French planche, from Late Latin planca, from feminine of Latin plancus, flat; see plāk-1 in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

planchet 
"metal disk out of which a coin is made," 1611, from Fr. planchette, lit. "a small board," dim. of planche, from O.Fr., from L. planca "board, slab, plank" (see plank). The planchette used in automatism and on Ouija boards is a re-borrowing of the Fr. word, 1860.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: plan·chet
Pronunciation: 'plan-ch&t
Function: noun
: a small metal disk or plate on which a sample of radioactive material is placed(as for quantitative determination of its reactivity)
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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