AIR PIPE
Air" pipe`.
Defn: A pipe for the passage of air; esp. a ventilating pipe.
AIR PLANT
Air" plant`. (Bot.)
Defn: A plant deriving its sustenance from the air alone; an aërophyte.
Note: The "Florida moss" (Tillandsia), many tropical orchids, and most mosses and lichens are air plants. Those which are lodged upon trees, but not parasitic on them, are epiphytes.
AIR POISE
Air" poise`. Etym: [See Poise.]
Defn: A
AIR PUMP
Air" pump`.
1. (Physics)
Defn: A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air of force in into a closed space.