invariance

noun

in·​vari·​ance (ˌ)in-ˈver-ē-ən(t)s How to pronounce invariance (audio)
: the quality or state of being invariant

Examples of invariance in a Sentence

Recent Examples on the Web
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The precise calibration of branch diameter leads to a hallmark of fractal shapes called scale invariance. 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 Now, with rotational invariance down, Duminil-Copin and his colleagues have their sights set on scale invariance, their original target. Allison Whitten, Wired, 11 July 2021 This conditional nature of stability means that psychological research cannot be a search for ever-lasting invariance (laws), but only for more or less local and temporary regularity. Neuroskeptic, Discover Magazine, 2 Jan. 2016

Word History

First Known Use

1878, in the meaning defined above

Time Traveler
The first known use of invariance was in 1878

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Cite this Entry

“Invariance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invariance. Accessed 8 Sep. 2025.

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