invariance

noun

in·​vari·​ance (ˌ)in-ˈver-ē-ən(t)s 

: the quality or state of being invariant

Examples of invariance in a Sentence

Recent Examples on the Web

The team tested the idea that Lorentz invariance could be violated at high energies, thus changing how photons propagate through space. — Robert Lea, Space.com, 9 Sep. 2026

Bootstrappers take such interactions for granted by assuming Lorentz invariance (the symmetries of a flat space-time fabric for particles to move around in). — Quanta Magazine, 23 Mar. 2026

But how would that spectrum of seed fluctuations differ from perfect scale-invariance? — Big Think, 22 Oct. 2025

Scale invariance occurs in trees because trunks, limbs and twigs all branch in similar ways and for similar reasons. — Mitchell Newberry, The Conversation, 11 Feb. 2025

The lower-dimensional theory also had an additional symmetry—conformal invariance—where the physical laws don’t change for all transformations of spacetime that preserve angles. — Anil Ananthaswamy, Scientific American, 1 Mar. 2023

With this in mind, the authors set out to prove scale invariance first, believing that rotational invariance would be the most difficult symmetry and knowing that translational invariance was simple enough and wouldn’t require its own proof. — Allison Whitten, Wired, 11 July 2021

One source of this robustness is the topological invariance mentioned earlier. — IEEE Spectrum, 21 June 2011

Word History

First Known Use

1878, in the meaning defined above

Rhymes for invariance

• variance
• covariance