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.

Words Nearby Invar

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Invar in a sentence

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

    B. C. 30,000 | Sterner St. Paul Meek
  • As the ramifications of the plan seeped into Invar's brain, his face glowed with enthusiasm.

    B. C. 30,000 | Sterner St. Paul Meek
  • Invar raised a rock high above his head with both hands and cast it at her.

    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
  • In time-keeping Invar is likely to be as valuable as in surveying.

    Inventors at Work | George Iles

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

Origin of Invar

1
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