Ballonet

Ballonet is a separate compartment withing the main envelope of a balloon. It is either gas-filled or air-filled. Ballonet is also a similar arrangement in airship. It is designed for maintenance or adjustment of the envelope's shape, buoyancy, or orientation.

Nearby pages
Balloon, Balloon angioplasty, Balloon catheter, Balloon mortgage, Balloon payment, Balloon vine