Aerostat

Full definition of aerostat

Noun

1. An aircraft, such as a dirigible or balloon, that derives its lift from buoyancy rather than from wings or rotors.
2. A moored balloon flown in a semi-permanent manner, as a border patrol monitoring balloon affixed at 18,000 feet (~6km).

Antonyms

• (lighter-than-air craft, with respect to its weight relationship with air) aerodyne

Related terms

• aerostatic