Any of various large papilionid butterflies of the genus Graphium, also called triangles, etc.
A cornflower, a plant that grows in grain fields, Centaurea cyanus, with blue flowers resembling bottles.
Any of various blowflies of the genus Calliphora that have an iridescent metallic-blue body and make a loud buzzing noise when flying.
A blue ant, Diamma bicolor, a parasitic wasp native to Australia.
A police officer.
A marine jellyfish 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.
A shape that can be repeated to cover a plane with a nonrepeating pattern.
A genius; a very smart person.
One mole of photons, regardless of frequency, as used to measure irradiance.