invariant

[ in-vair-ee-uhnt ]
/ ɪnˈvɛər i ənt /

adjective

unvarying; invariable; constant.
Mathematics. normal (def. 5e).

noun

Mathematics. a quantity or expression that is constant throughout a certain range of conditions.

QUIZZES

THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST

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Question 1 of 10
seclusion

Origin of invariant

First recorded in 1850–55; in-3 + variant

OTHER WORDS FROM invariant

in·var·i·ant·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for invariant

invariant
/ (ɪnˈvɛərɪənt) /

noun

maths an entity, quantity, etc, that is unaltered by a particular transformation of coordinatesa point in space, rather than its coordinates, is an invariant

adjective

maths (of a relationship or a property of a function, configuration, or equation) unaltered by a particular transformation of coordinates
a rare word for invariable

Derived forms of invariant

invariance or invariancy, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012