| NOUN | substance | Invar | an alloy of iron and nickel having a low coefficient of thermal expansion |
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| Meaning | An alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments. | |
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| Broader | alloy, metal | A mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten |
| Usage of | trademark | A formally registered symbol identifying the manufacturer / manufacturer or distributor / distributor of a product |
| Spanish | invar | |
| Catalan | invar, Invar | |
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