any of the American varieties of heron with bluish or bluish-gray plumage, as the great blue heron.
the oldest and densest ice in a glacier, distinguished by a pale-blue color. noun
the pure color of a clear sky; the primary color between green and violet in the visible spectrum, an effect of light with a wavelength between 450 and 500 nm. bluing. something having a blue color: Place the blue next to the red. a person who wears blue or is a member of a group […]
a city in NE Illinois, near Chicago.