Definition of aerostat
: a lighter-than-air aircraft (such as a balloon or blimp) — compare aerodyne
Recent Examples of aerostat from the Web
Predators and aerostats, for instance, cannot fly in thunderstorms or high winds.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aerostat'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of aerostat
French aérostat, from aér- + -stat
First Known Use: 1784See Words from the same year
Learn More about aerostat
Seen and Heard
What made you want to look up aerostat? Please tell us where you read or heard it (including the quote, if possible).