alterant

[ awl-ter-uh nt ]
/ ˈɔl tər ənt /

adjective

causing or producing alteration.

noun

something that produces alteration.

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. 2019