Cancel or cancellation may refer to:
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Flight cancellation and delay, not operating a scheduled flight
Sociology
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Cancel culture, boycott and ostracism calling out offensive behavior on social media or in real life
Technology and science
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Cancel leaf A cancel is a bibliographic term for a replaced leaf in a printed book.Bibliographical Notes and Queries - Volumes 1-2 - Page 11
1935 -
Normally, a cancel leaf is of course later than what I may call an integral leaf. The technique for this is u ...
, a bibliographic term for replaced leaves in printed books
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Cancellation property
In mathematics, the notion of cancellative is a generalization of the notion of invertible.
An element ''a'' in a magma has the left cancellation property (or is left-cancellative) if for all ''b'' and ''c'' in ''M'', always implies that .
An ...
, the mathematical property if ''a''×''b'' = ''a''×''c'' then ''b'' = ''c''
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Cancelling out
Cancelling out is a mathematical process used for removing subexpressions from a mathematical expression, when this removal does not change the meaning or the value of the expression because the subexpressions have equal and opposing effects. ...
, a technique for simplifying mathematical expressions
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Catastrophic cancellation, numerical error arising from subtracting approximations to nearby numbers
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Noise cancellation
Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first develop ...
, a method for reducing unwanted sound
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Phase cancellation
In physics, interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude. Constructive and destructi ...
, the effect of two waves that are out of phase with each other being summed
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Cancel message
Control messages are a special kind of Usenet post that are used to control news servers. They differ from ordinary posts by a header field named Control. The body of the field contains control name and arguments.
There are two historical alterna ...
, a special message used to remove Usenet articles posted to news servers
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Cancel character, an indication that transmitted data are in error or are to be disregarded
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Resolution rule, in propositional logic a valid inference rule that produces a new clause by two clauses containing complementary literals.
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Cancellable (linguistics), a property of implicatures and presuppositions
Entertainment
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Cancellation (television), the termination of a television series
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"Cancelled" (''South Park''), a 2003 episode of the TV series ''South Park''
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"Canceled" (''Nikita''), a 2013 episode of ''Nikita''
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Canceled (song), a 2020 song by Larray
People and characters
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Robinson Cancel (born 1976), baseball catcher
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Rafael Cancel Miranda (born 1930), political activist
*An alternate name for the archangel
Camael
Government
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Cancellation of removal, a form of immigration relief available to aliens in the United States who be otherwise inadmissible or deportable
* Cancellation of
Nationality
Nationality is a legal identification of a person in international law, establishing the person as a subject, a ''national'', of a sovereign state. It affords the state jurisdiction over the person and affords the person the protection of the ...
See also
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Mitigation
Mitigation is the reduction of something harmful or the reduction of its harmful effects. It may refer to measures taken to reduce the harmful effects of hazards that remain ''in potentia'', or to manage harmful incidents that have already occur ...
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Nullification (disambiguation)
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