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Bluebottle (marine jelly of the genus Physalia) washed ashore at Batemans Bay, New South Wales, Australia


blue +‎ bottle


bluebottle (plural bluebottles)

  1. Any of various blowflies of the genus Calliphora that have an iridescent metallic-blue body and make a loud buzzing noise whilst flying.
  2. A marine jelly of the genus Physalia, which includes Physalia physalis, the Portuguese man-of-war, and Physalia utriculus, the Pacific man-of-war; a man-of-war.
  3. A cornflower, a plant that grows in grain fields, Centaurea cyanus, with blue flowers resembling bottles.
  4. A blue ant, Diamma bicolor, a parasitic wasp native to Australia.
  5. (slang, derogatory) A police officer.

Derived terms[edit]