Bluebottle
WordNet
noun
(1) Blowfly with iridescent blue body; makes a loud buzzing noise in flight
(2) An annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers
WiktionaryText
Noun
- 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.