(uncountable) 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.
You never want to create a suffocation risk for your child.
Prevent suffocation and reduce the risk of SIDS.
pneumoconiosis caused near suffocation and almost inevitably proved fatal.
A koi pond should be able to stand-alone for hours without danger of quick suffocation or toxic waste build up.
The symptoms of strychnine poisoning usually appear within twenty minutes of the ingestion of a poisonous dose, starting with an uneasy sensation, stiffness at the back of the neck, twitching of the muscles and a feeling of impending suffocation.