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Vernier

[vur-nee-er; French ver-nyey]
noun
  1. Pierre [pyer] /pyɛr/, 1580–1637, French mathematician and inventor.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pierre vernier

vernier

noun
  1. a small movable scale running parallel to the main graduated scale in certain measuring instruments, such as theodolites, used to obtain a fractional reading of one of the divisions on the main scale
  2. an auxiliary device for making a fine adjustment to an instrument, usually by means of a fine screw thread
  3. (modifier) relating to or fitted with a verniera vernier scale; a vernier barometer
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Word Origin

C18: named after Paul Vernier (1580–1637), French mathematician, who described the scale
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pierre vernier

vernier

n.

1766, device for making precise measurements, from name of inventor, French mathematician Paul Vernier (1580-1637), who described it in a tract published 1631.

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Online Etymology Dictionary, © 2010 Douglas Harper

pierre vernier in Science

Vernier

[vĕr-nyā]
  1. French mathematician and maker of scientific instruments, known especially for his invention of an auxiliary scale (named after him) used for obtaining a highly precise reading of a subdivision of an ordinary scale.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.