Noun: cancellation ,kan-su'ley-shun
- The act of cancelling; calling off some arrangement
"The cancellation of the event disappointed many ticket holders";
- cancelation [US, rare]
- (philately) a mark made on a postage stamp to show it has been used
"The rare stamp had a clear Manchester cancellation";
- cancelation [US, rare]
- (mathematics) the elimination of equal terms or factors from an equation or expression
"The cancellation of common factors simplified the fraction";
- cancelation [US, rare]
Derived forms: cancellations
Type of: nullification, override
Encyclopedia: Cancellation