1. 
   Invar
   Invar, also known generically as FeNi36 (64FeNi in the US), is a nickel iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α). The name, Invar, comes from the word invariable, referring to its lack of expansion or contraction with temperature changes. It was invented ...
   Found op http://en.wikipedia.org/wiki/Invar
   
   
2. 
   Invar
   [n] - (trademark) an alloy of iron and nickel having a low coefficient of thermal expansion
   Found op http://www.webdictionary.co.uk/definition.php?query=Invar
   
   
3. 
   Invar
   Low thermal expansion alloy of iron and nickel. Typically 36% Nickel and 64% Iron.
   Found op http://www.diracdelta.co.uk/science/source/i/n/invar/source.html
   
   
4. 
   Invar
   A nickel iron containing 36 per cent of nickel. It has an exceedingly low rate of expansion and has a high resistance to water corrosion.
   Found op http://www.aeroplanemonthly.com/glossary/
   
   
5. 
   Invar
   alloy of iron that expands very little when heated; it contains 64 percent iron and 36 percent nickel. Invar was formerly used for absolute ... [4 related articles]
   Found op http://www.britannica.com/eb/a-z/i/35
   
   
6. 
   Invar
   Invar is an alloy of iron and nickel.
   Found op http://www.probertencyclopaedia.com/browse/GI.HTM
   
   
7. 
   invar
   1) Alloy 2) Alloy of iron and nickel 3) Invar 4) Metal
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/invar/1
   
   

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