alterant

[ awl-ter-uhnt ]
/ ˈɔl tər ənt /

adjective

causing or producing alteration.

noun

something that produces alteration.

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Origin of alterant

1620–30; <Late Latin alterant- (stem of alterāns changing, present participle of alterāre), equivalent to alter other + -ant--ant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020