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Invar
[ in-vahr ]
Trademark.
- a brand of iron alloy containing 35.5 percent nickel and having a very low coefficient of expansion at atmospheric temperatures.
Invar
/ ɪˈɑː /
noun
- 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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Word History and Origins
Origin of Invar1
C20: shortened from invariable
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Example Sentences
Examples have not been reviewed.
Take Invar, and allow of nickel and iron.
From
They found that Questar telescopes—used by hobbyists for more than half a century—fit the space perfectly, so they ordered a couple of custom ones fashioned out of Invar, a thermally stable nickel-iron alloy.
From
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
Invar's knife found her heart, and she sank back dead.
From
I hope the meal was with you this day, thirty-five bolls,—for it was at Invar last night.
From
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