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

Invar threw his shoulder against a huge boulder on the slope.

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

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

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

"Then are Uglik's days numbered," replied Invar with delight.

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

"Where you go, there go I," exclaimed Invar.

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

I hope the meal was with you this day, thirty-five bolls,—for it was at Invar last night.

From Memoirs of the Jacobites of 1715 and 1745 Volume II. by Thomson, Mrs.