Is “Invar” a Scrabble word?
Yes
INVAR
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Invar
noun
1.An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion.