1. He experimented with lighter-than-air flight.

2. The postwar history of lighter-than-air transportation is littered with failed attempts.

3. A self-propelled lighter-than-air craft with directional control surfaces.

4. The Man Angel was lighter-than-air and had paddles like a rowboat that the aviator could pump.

5. Soft cotton blend delivers a lighter-than-air feel while wicking away moisture.

6. Because the onion cells, when cut, produce a lighter-than-air gas, the peeling off of the layers irritates the eyes. The irritation brings tears, which are produced to wash away the irritation.

7. Fiercely tart, this dessert is a massive wedge of creamy pie topped with a puff of lighter-than-air meringue.