lighter-than-air
- s relating to a balloon or other aircraft that flies because it weighs less than the air it displaces
- Other detractors suggest that she is almost entirely helium, a gas-filled, lighter-than-air creation of MTV and other sinister media packagers (these doubters have not felt the .
- There remained but two records to pass, that for sustained flight (lighter-than-air machines), and the distance record.
- Translucent, lighter-than-air panels, billowing plastic waves, scepter-like deep-sea sculptures, which manage to convey not just one undersea world but a host of neighborhoods .