A Bull is an adult male of various large animal species including elk, moose, bovines (especially cattle), elephants, whales, seals, and sea lions. Bull may also refer to: · A man who has sex with a woman in another relationship, thus making the other man a cuckold; see affair · The senior most Ensign in a United States Navy command; also called the "Bull Ensign" · Ceradyne Bull, a military vehicle · Papal bull, a solemn decree from the Pope · Bull of the Crusade, a religious document given as a type of indulgence · Bull , worship of the Sacred Bull throughout the ancient world · Bull market, an economic trend · Irish bull, a ludicrous, incongruent or logically absurd statement · Groupe Bull the French computer company · Bull , an original show on the TNT Network · "Bull" , an 8th season episode of CSI: Crime Scene Investigation