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Invar

[in-vahr] /ɪnˈvɑr/
Trademark.
1.
a brand of iron alloy containing 35.5 percent nickel and having a very low coefficient of expansion at atmospheric temperatures.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for Invar
Historical Examples
  • With a flint knife, Invar slowly and painfully hacked off Anak's long hair and beard.

    B. C. 30,000 Sterner St. Paul Meek
  • 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
  • With shouts of triumph, Anak and Invar bounded down the slope.

    B. C. 30,000 Sterner St. Paul Meek
  • There was no lack of food, for game was plentiful and Invar had found and mended the throwing-spears which Esle had tampered with.

    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
  • As they ran, Invar's foot dislodged a boulder which thundered down the slope.

    B. C. 30,000 Sterner St. Paul Meek
  • Anak and Invar walked slowly up to the cave where Una waited.

    B. C. 30,000 Sterner St. Paul Meek
  • Invar is practically non-expansible when the nickel in it is about 37%.

    Time Telling through the Ages Harry Chase Brearley
  • Invar leaped to Una's side, to find her wrestling with Esle.

    B. C. 30,000 Sterner St. Paul Meek
British Dictionary definitions for Invar

Invar

/ɪnˈvɑː/
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
Word Origin
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
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8
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