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McGraw-Hill Dictionary of Scientific and Technical Terms (6th Edition, 2003) defines 'death' as: Cessation of all life functions; can involve the whole organism, an organ, individual cells, or cell parts.
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Gale Encyclopedia of Medicine (2008) says: Death is defined as the cessation of all vital functions of the body including the heartbeat, brain activity (including the brain stem), and breathing. Death comes in many forms, whether it be expected after a diagnosis of terminal illness or an unexpected accident or medical condition. When a terminal illness is diagnosed, a person, family, friends, and physicians are all able to prepare for the impending death. A terminally ill individual goes through several levels of emotional acceptance while in the process of dying. First, there is denial and isolation. This is followed by anger and resentment. Thirdly, a person tries to escape the inevitable. With the realization that death is eminent, most people suffer from depression. Lastly, the reality of death is realized and accepted.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health (7th Edition, 2003) defines 'death' as: The cessation of all physical and chemical processes that invariably occurs in all living organisms. There is at present no standardized diagnosis of clinical death or precise definition of human death.
The American Heritage Medical Dictionary (2007) defines 'death' as: The end of life; the permanent cessation of vital bodily functions, as manifested in humans by the loss of heartbeat, the absence of spontaneous breathing, and heart death.
Segen's Medical Dictionary (2011) defines 'death' as: A state defined in the US by the Uniform Determination of Death Act, 1981, as that which occurs in an individual who has sustained either: (1) irreversible cessation of circulatory or respiratory functions, or (2) irreversible cessation of all functions of the entire brain, including the brain stem.
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