How to Spell inverse

inverse - noun

• An inverted state: a state in which something has been turned (properly) upside down or inside out or backwards.

• The result of an inversion, particularly:

• A second element which negates a first; in a binary operation, the element for which the binary operation—when applied to both it and an initially given element—yields the operation's identity element, specifically:

• A morphism which is both a left inverse and a right inverse.