Definition of vernier in English:

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Pronunciation: /ˈvəːnɪə/


A small movable graduated scale for obtaining fractional parts of subdivisions on a fixed main scale of a barometer, sextant, or other measuring instrument.
Example sentences
  • Root diameters at these positions along the roots were then measured using a vernier microscope.
  • He designed a simple device similar to that of the modern vernier for increase in the accuracy of measuring lengths.
  • The apprentice class of 1995-1999 were presented with inscribed verniers and their certificates to mark their graduation.


Mid 18th century: named after Pierre Vernier (1580–1637), French mathematician.

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