Additive Inverse Definition

noun
The number that must be added to a number to equal zero.
−5 is the additive inverse of 5
Webster's New World

(mathematics) The inverse with respect to addition; the opposite.

The additive inverse of 12 is −12.
Wiktionary

Other Word Forms of Additive Inverse

Noun

Singular:
additive inverse
Plural:
additive inverses

Origin of Additive Inverse

  • So called because the sum of a number and its additive inverse is the additive identity.

    From Wiktionary

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