Bluebottle

Origin

blue + bottle

Full definition of bluebottle

Noun

1. Any of various blowflies of the genus that have an iridescent metallic-blue body and make a loud buzzing noise whilst flying.
2. A marine jelly of the genus , which includes , the Portuguese man-of-war, and Physalia utriculus, the ; a man-of-war.
3. A cornflower, a plant that grows in grain fields, Centaurea cyanus, with blue flowers resembling bottles.
4. A , , native to Australia.