| air pressure |
the pressure of compressed air, as in a tire or pump, or the pressure of the earth's atmosphere. |
| airproof |
not allowing air to pass or penetrate. [2 definitions] |
| air pump |
a pump for suctioning, compressing, or injecting air. |
| air quality |
the degree that the air in a particular environment contains pollution. |
| air raid |
a military raid by aircraft, esp. bombers. |
| air rifle |
a rifle operated by compressed air, used to fire small pellets or the like. |
| air sac |
an air-filled space or cavity in a living organism, esp. any of the ends of certain bronchial tubes in a bird's body that connect with the larger body cavity and assist in breathing. |
| air shaft |
a narrow vertical passage through which fresh air can reach an otherwise enclosed area such as the interior of a building; ventilating shaft. |
| airship |
a lighter-than-air aircraft, with its own propulsion system and steering control. |
| airsick |
nauseated because of air travel; suffering from airsickness. |
| airsickness |
motion sickness, usu. including nausea, caused by air travel. |
| airspace |
the space extending above a particular land area, esp. that of a political entity. [2 definitions] |
| airspeed |
the speed of a flying object, esp. an aircraft, relative to the surrounding air. |
| airstrike |
an attack by air forces or other military aviation against a ground or naval target. |
| airstrip |
an airfield or landing strip, usu. unpaved and without the personnel or equipment of an airport; runway. |
| air taxi |
a small aircraft that carries passengers or cargo over short distances, esp. to places not served by regular airlines. |
| airtight |
preventing the entrance or exit of air. [2 definitions] |
| airtime |
broadcast time allotted, as to an event or news story, on television or radio. |
| air-to-air |
of a missile or the like, designed to be shot by an aircraft at an aerial target. |
| air traffic |
movement of airplanes and other air transportation vehicles through the air or on runways. |
| airwaves |
the media used for transmission of radio and television signals. |