invariant

adjective
in·vari·ant | \ (ˌ)in-ˈver-ē-ənt \

Definition of invariant 

: constant, unchanging specifically : unchanged by specified mathematical or physical operations or transformations invariant factor

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Other words from invariant

invariant noun

First Known Use of invariant

1874, in the meaning defined above

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The first known use of invariant was in 1874

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