a broad tire filled with air at low pressure for cushioning the shock of uneven surfaces: used on road vehicles such as bicycles and early automobiles.
- Balloon tyre
noun a pneumatic tyre containing air at a relatively low pressure and having a wide tread
- Balloon vine
a tropical climbing plant, Cardiospermum halicacabum, of the soapberry family, bearing big, bladderlike pods and black seeds with a white, heart-shaped spot. noun a tropical tendril-climbing sapindaceous plant, Cardiospermum halicacabum, cultivated for its ornamental balloon-like seed capsules
- Balloon-tip catheter
balloon-tip catheter balloon-tip catheter n. A tube with an inflatable balloon at its tip that, when inflated, can facilitate passage of the tube through a blood vessel.
balloonheaded adjective Stupid; oafish: Listen, you balloon-headed fool (1930s+)