ALL meanings of invar
In·var
I i - noun invar An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion. 1
- noun invar 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 0
- noun invar a steel alloy containing approximately 36% nickel, used for making precision instruments and thermostatic elements because of its low coefficient of thermal expansion 0
- noun invar this substance 0