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

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Example Sentences

See Examples For:

Invar

Anak bounded up the slope, Invar at his heels.

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

Invar slowly recovered consciousness, and now sat up.

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

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

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

I sat on cushioned otter skin: My word was law from Ith to Emen, And shook at Invar Amargin The hearts of the world-troubling seamen.

From Poems by W. B. (William Butler) Yeats

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