[air-uh-stat] 
| any lighter-than-air aircraft, as a balloon or dirigible. |
| aer·o·stat (âr'ō-stāt') n. An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion. [French aérostat : Greek āero-, aero-; see aero- + Greek statos, standing; see stato-.] aer'o·stat'ic, aer'o·stat'i·cal adj. |
əˌstæt