- (bluebottle) cornflower: an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers
- (bluebottle) blowfly with iridescent blue body; makes a loud buzzing noise in flight
- (bluebottle) Any of various blowflies of the genus Calliphora that have an iridescent metallic-blue body and make a loud buzzing noise whilst flying; Various marine creatures of the order Physalia, such as Physalia physalis the Portuguese Man o' War
- (Bluebottle) A British term for policeman that may have derived from Cockney rhyming slang. 'Bottle' is an abbreviation of 'bottle and glass', which is rhyming slang for 'arse'. (See also Bottles).
- (Bluebottle) A blue coloured potch, more commonly found with boulder opal.
- (Bluebottle) The common name for the Blue Corn-flower (Centaurea cyanus). See notes on herbs.
- (blue-bottle) a bright, metallic-blue blowfly.
- (bluebottle) Physalia physalis is not a single animal but a colony of different polyps (kinds of highly modified individuals). Bluebottles feed using their long, stinging tentacles to ensnare small crustaceans and other members of the surface plankton. ...