[air-pleyn] 
| 1. | a heavier-than-air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. |
| 2. | any similar heavier-than-air aircraft, as a glider or helicopter. |
| air·plane (âr'plān') n. Any of various winged vehicles capable of flight, generally heavier than air and driven by jet engines or propellers. |
