WordReference Random House Unabridged Dictionary of American English © 2026
al•ter•ant
(ôl′tər ənt),USA pronunciation adj.
n.
- causing or producing alteration.
n.
- something that produces alteration.
- Late Latin alterant- (stem of alterāns changing, present participle of alterāre), equivalent. to alter other + -ant- -ant
- 1620–30