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

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

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

Invar hurled a throwing-stone which found the monster's face and made him pause.

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

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

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

Anak bounded up the slope, Invar at his heels.

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

As the sun rose above the horizon, Anak and Invar took their way up the valley.

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