noun

The definition of an additive inverse is the number needed to bring a negative number to zero.

An example of an additive inverse is the number 30 when added to -30.

## additive inverse

the number that must be added to a number to equal zero: ?5 is the

*additive inverse*of 5## additive inverse

noun

See inverse.

## additive-inverse

Noun

(*plural* additive inverses)

Origin

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