deep, rapid, and labored breathing caused by an increased respiratory drive due to abnormally low blood oxygen levels, as in severe heart failure or asthma.
- Air injection
injection of liquid fuel into the cylinder of an internal-combustion engine, especially a diesel, by means of a jet of compressed air.
- Air jacket
an envelope of enclosed air around part of a machine, as for checking the transmission of heat. British, . noun an air-filled envelope or compartment surrounding a machine or part to reduce the rate at which heat is transferred to or from it Compare water jacket a less common name for life jacket
- Air kiss
a pursing of the lips in a pretended kiss, as when parting on the telephone or touching cheeks in greeting. noun a kissing gesture, esp one directed towards a person’s cheeck, made without making physical contact verb to make such a gesture towards a person
- Air lance
a lance using an air blast. to clean with an air lance.