Invar

American  

[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.

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Invar British  

/ ɪnˈvɑː /

noun

1. 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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Etymology

Origin of Invar

C20: shortened from _invariable

Example Sentences

See Examples For:

Invar

Invar, a nickel-steel alloy, which also has an extremely small coefficient of expansion, is used in making clock pendulums, which are unaffected by change of temperature.

From The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar by Various

"Una!" cried Invar and Anak in one voice.

From B. C. 30,000 by S. P. (Sterner St. Paul) Meek

She strove to rise to her feet, but Una had her orders from Invar.

From B. C. 30,000 by S. P. (Sterner St. Paul) Meek

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

From B. C. 30,000 by S. P. (Sterner St. Paul) Meek

"Who strikes my friend, strikes me!" cried Invar.

From B. C. 30,000 by S. P. (Sterner St. Paul) Meek