invar

I1N1V4A1R1

noun

An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion.

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Meanings

nouninvar (countable and uncountable, plural invars)

plural invars

  1. countableuncountableAn alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion.

Origin

Shortening of invariable.

Full word history & related roots →

Rhymes & wordplay

Anagrams

ArvinravinVanirVarinNarviNivar
Cite this entry
APA

invar. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/invar

MLA

“invar.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/invar. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “invar,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/invar.

Source: invar on Wiktionary, CC BY-SA 4.0.