Health bull eye close-up about black and white Art

>This article refers to the sight organ. See Eye (disambiguation) for other usages An eye is an organ that detects light. Different kinds of light-sensitive organs are found in a variety of creatures. The simplest eyes do nothing but detect whether the surroundings are light or dark. More complex eyes are used to provide the sense of vision. Many complex organisms including some mammals, birds, reptiles and fish have two eyes which may be placed on the same plane to be interpreted as a single three-dimensional "image" (binocular vision), as in humans; or on different planes producing two separate "images" (monocular vision), such as in rabbits and chameleons. See more at Wikipedia.org...

l or bull has various meanings: The uncastrated male of cattle. This is the origin of most of the other meanings.A male of various other animal species, including buffalo, elephant, whale. In English, the word "bull" alone is usually spoken to refer specifically to male cattle, with terms such as "bull elephant" disambiguating the term for other species. See also cow.Gerald Bull was an engineer developing long range artillery.Groupe Bull is a computer company.The character of Bull, played by Richard Moll, on the comedy series Night CourtA share-trading term. See Bull marketA slang word for police officers, especially prison guards. In homomasculine slang, a large stocky male who displays aggressive dominant behavior. See also "Bear".Short for bullshit. (slang)In the British Army, and sometimes elsewhere, "bull" is slang for drill and equipment-cleaning that the men consider to be excessive. This usage may derive from a type of Army issue boot polish that was said to look like cattle excrement, thus "bullshit".A papal bull is a written communication from the Vatican, bearing the papal seal. This meaning came from Latin bulla = seal.Golden Bull: a kind of legal document in history See more at Wikipedia.org...