WordReference Random House Unabridged Dictionary of American English © 2026
bub•ble•top
(bub′əl top′),USA pronunciation n.
adj.
- Automotivea transparent dome, usually made of plastic or bulletproof glass, that serves as the roof or part of the roof of an automotive vehicle.
- Automotivea vehicle having such a dome:The old van was converted into a bubbletop.
adj.
- Automotivefitted with such a dome:a bubbletop limousine.
- bubble + top1 1965–70