D defs.my
Entry 2 senses Webster, 1913

Cancellation

/kănˌ-səl-āsh'-ən/ · Can·cel·la·tion · IPA /kænsəˈleɪʃən/
01 n. The act, process, or result of canceling; as, the cansellation of certain words in a contract, or of the contract itself.
  1. 1.
    The act, process, or result of canceling; as, the cansellation of certain words in a contract, or of the contract itself.
  2. 2.
    The operation of striking out common factors, in both the dividend and divisor.(Math.)