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planometer

American  
[pluh-nom-i-ter] / pləˈnɒm ɪ tər /

noun

Machinery.

  1. surface plate.

planometer British  
/ plæˈnɒmɪtə, ˌpleɪnəˈmɛtrɪk /

noun

  1. a flat metal plate used for directly testing the flatness of metal surfaces in accurate metalwork

"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

Other Word Forms

  • planometric adjective
  • planometrically adverb
  • planometry noun

Etymology

Origin of planometer

An Americanism dating back to 1860–65; plano- 1 + -meter

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For testing the truth of flat or plane surfaces the machinist employs the surface plate or planometer.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.