- The condition in which the cells of the body receive inadequate amounts of oxygen secondary to changes in perfusion; most commonly secondary to blood loss or sepsis.
- A sudden physical or biochemical disturbance that results in inadequate blood flow and oxygenation of an animal's vital organs.
- A state of profound mental and physical depression consequent to severe physical injury or to emotional disturbance.
- A state characterized by inadequacy of blood flow throughout the body to the extent that damage occurs to the cells of the tissues; if the shock is prolonged, the cardiovascular system itself becomes damaged and begins to deteriorate, resulting in a vicious cycle that leads to death.
[Fr. choc, fr. Germanic]
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