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Invar

[in-vahr]
Trademark.
  1. a brand of iron alloy containing 35.5 percent nickel and having a very low coefficient of expansion at atmospheric temperatures.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for invar

Historical Examples of invar

  • Invar will be honored if his friend will eat of the liver of his kill.

    B. C. 30,000

    Sterner St. Paul Meek

  • Anak hurled Invar's spear and again his weapon found its mark.

    B. C. 30,000

    Sterner St. Paul Meek

  • "I thank you for coming with me," he said, his hand on Invar's shoulder.

    B. C. 30,000

    Sterner St. Paul Meek

  • With shouts of triumph, Anak and Invar bounded down the slope.

    B. C. 30,000

    Sterner St. Paul Meek

  • Invar threw his shoulder against a huge boulder on the slope.

    B. C. 30,000

    Sterner St. Paul Meek


British Dictionary definitions for invar

Invar

noun
  1. trademark an alloy containing iron (63.8 per cent), nickel (36 per cent), and carbon (0.2 per cent). It has a very low coefficient of expansion and is used for the balance springs of watches, etc
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Word Origin for Invar

C20: shortened from invariable
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