Definition of Invar in English:

Invar

Syllabification: In·var
Pronunciation: /ˈinˌvär
 
/

noun

trademark
  • An alloy of iron and nickel with a negligible coefficient of expansion, used in the making of clocks and scientific instruments.
    More example sentences
    • Mr Bebb marvelled judges with a demonstration about Invar, an alloy which does not contract or expand when the temperature changes using nothing but balloons and chit-chat.
    • This includes joining hard-to-weld and exotic materials such as the stainless steels, aluminum, magnesium, copper, beryllium copper, Hastelloy, Inconel, Invar and Kovar, especially in very thin cross sections.
    • Choosing a material with a low coefficient of thermal expansion, such as Invar, is one method for minimizing thermal drift.

Origin

early 20th century: abbreviation of invariable.

More definitions of Invar

Definition of Invar in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day tortie
Pronunciation: ˈtôrtē
noun
a tortoiseshell cat