a light-blue to strong greenish-blue color.
a pigment used in painting consisting mainly of oxides of tin and cobalt, chiefly characterized by its greenish-blue color and permanence.
Blue SteelRead more in this article about some frequently asked questions and fun facts related to our definitions.
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- cerulean warbler,
Origin of cerulean blue
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019