additive identity


: an identity element (such as 0 in the group of whole numbers under the operation of addition) that in a given mathematical system leaves unchanged any element to which it is added

Word History

First Known Use

1953, in the meaning defined above

Time Traveler
The first known use of additive identity was in 1953

Dictionary Entries Near additive identity

Cite this Entry

“Additive identity.” Dictionary, Merriam-Webster, Accessed 14 Jul. 2024.

Kids Definition

additive identity

: an element (as zero in the set of real numbers) of a mathematical set that leaves every element of the set unchanged when added to it

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