noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A nickel–iron–chromium alloy notable for having a modulus of elasticity which does not change much with temperature. countable, uncountable
2. 2
   Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures wordnet
3. 3
   Any of various related alloys. countable, uncountable

Synonyms

All synonyms

alloychrome-nickel steel

Etymology

From French élasticité invariable (“invariable elasticity”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.