WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
impair the respiration of or obstruct the air passage of
verb.
deprive of oxygen and prevent from breathing
verb.
be asphyxiated; die from lack of oxygen
Word Usage
"Moreover, when the human body does start to asphyxiate on a liquid, it has a … peculiar reflex, designed to prevent aspiration of liquid: the larynx clamps down, preventing anything - air, water, whatever, from entering the lungs."