noun
: any of the colors varying from very pale yellow to very dark blue that are assumed by a smooth surface of steel as a result of reheating, are due to thin films of oxide, and correspond to definite temperatures
noun
: any of the colors varying from very pale yellow to very dark blue that are assumed by a smooth surface of steel as a result of reheating, are due to thin films of oxide, and correspond to definite temperatures
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012