a two-seat, three-wheeled vehicle with a transparent bubbletop.
(in Britain, formerly) a small car, often having three wheels, with a transparent bubble-shaped top
an apparatus for determining the movements of charged particles, consisting of a chamber containing a superheated transparent liquid that, by boiling and producing bubbles in the path of an ionizing particle, indicates the path of the particle. noun a device that enables the tracks of ionizing particles to be photographed as a row of bubbles […]
a solo dance by a nude or nearly nude woman, as in a burlesque show, using one or more balloons for covering.