1) Blowfly 2) British slang for a policeman 3) Centaurea cyanus 4) Cornflower 5) Flower 6) Large buzzing fly 7) Shiny blowfly 1) Blowfly 2) Fly 
[character] Bluebottle is a comedy character from the Goon Show, a 1950s British comedy radio show. The character was created and performed by Peter Sellers. Bluebottle is an adenoidal squeaky-voiced boy scout from East Finchley (the same neighborhood of London where Peter Sellers grew up). He was noted for reading his own stage directions ...
• (n.) A plant (Centaurea cyanus) which grows in grain fields. It receives its name from its blue bottle-shaped flowers. • (n.) A large and troublesome species of blowfly (Musca vomitoria). Its body is steel blue.
(from the article `Portuguese man-of-war`) ...found floating in groups of thousands. Physalia physalis is the only widely distributed species. P. utriculus, commonly known as the bluebottle, ...
Blue'bot`tle noun 1. (Botany) A plant ( Centaurea cyanus ) which grows in grain fields. It receives its name from its blue bottle-shaped flowers. 2. (Zoology) A large and troublesome species of blowfly ( Musca vomitoria ). Its body is steel blue. 
Bluebottle is British slang for a policeman.
[n] - blowfly with iridescent blue body
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).
Calliphora vicina noun blowfly with iridescent blue body; makes a loud buzzing noise in flight
Another name for blowfly
cornflower (def. 1). · a composite plant, Centaurea cyanus, having narrow leaves and blue flower heads. · See · Portuguese man-of-war.