A particular act of death or killing by means of asphyxia.
Asphyxia—a condition in which an extreme decrease in the concentration of oxygen in the body accompanied by an increase in the concentration of carbon dioxide leads to loss of consciousness or death.
A child left unattended may die of suffocation.
A temporary cessation of breathing and consciousness resembling death; often the result of asphyxia.
The deliberate slowing of the body's functions, sometimes by the use of cryonics, on long interstellar journeys.