'Cancellation' definitions:

Definition of 'cancellation'

(from WordNet)
noun
The act of cancelling; calling off some arrangement
noun
The speech act of revoking or annulling or making void

Definition of 'Cancellation'

From: GCIDE
  • Cancellation \Can`cel*la"tion\, n. [L. cancellatio: cf. F. cancellation.]
  • 1. The act, process, or result of canceling; as, the cansellation of certain words in a contract, or of the contract itself. [1913 Webster]
  • 2. (Math.) The operation of striking out common factors, in both the dividend and divisor. [1913 Webster]