a physiological state corresponding to a strong need or desire

a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas

hypoxia resulting from a decreased concentration of hemoglobin

hypoxia resulting from defective oxygenation of the blood in the lungs

hypoxia resulting from slow peripheral circulation (such as follows congestive cardiac failure)

effects (as nosebleed or nausea) of oxygen deficiency in the blood and tissues at high altitudes

severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues

a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas