Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun invar

1 sense of invar

Sense 1
Invar -- (an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments)
       => 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; "brass is an alloy of zinc and copper")