bubble chamber noun (physics)

A device for showing the path of a charged particle by the string of bubbles left in its track, a variant of the cloud chamber

bubble gum noun

A kind of chewing gum that can be blown into large bubbles

bubbˈle-headed adjective (informal)

Frivolous, flighty

bubble-jet printer noun

A kind of inkjet printer, in which droplets of heated ink are projected onto the paper by the expansion of the bubbles

bubble memory noun (computing; obsolete)

A memory composed of minute moving pockets of magnetism that represent, by their presence or absence in relation to fixed points, bits (qv) of digital information

bubble pack noun

A type of packaging in which goods are enclosed in a transparent bubble of plastic, etc backed by card

bubbˈle-shell noun

A gastropod (genus Bulla) with thin globose shell

bubble sort noun (computing)

A method of sorting items of data in a list by repeatedly scanning the list and putting adjacent pairs of items in order

bubble wrap noun

Plastic packing material consisting of small air-filled pockets

bubbˈly-jock noun (Scot)

A turkey cock

bubble and squeak

A British dish of leftover boiled potatoes and cabbage mashed together and fried, sometimes together with other leftovers

bubble over

To show uncontrolled anger, mirth, etc

bubble under

To hover just below a significant point or division, as on a scale