A bull is a male of various animal species, including:

• cattle
• elephant
• whale

In English, "bull" is usually spoken to refer specifically to male cattle, with terms such as "bull elephant" disambiguating the term for other species.

See also cow.

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Gerald Bull was an engineer developing long range artillery.

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Groupe Bull is a computer company.

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A papal bull is a written communication from the Vatican, bearing the papal seal.

See also Bull market