a lighter-than-air craft, such as a balloon
WordReference Random House Unabridged Dictionary of American English © 2025
aer•o•stat
(âr′ə stat′),USA pronunciation n.
- Aeronauticsany lighter-than-air aircraft, as a balloon or dirigible.
- aero- + -stat 1775–85
Collins Concise English Dictionary © HarperCollins Publishers::
'aerostat' also found in these entries (note: many are not synonyms or translations):