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Blue moons, blue northers and blue ice: Are these actually blue?

Word List with 21 words
By Dictionary.com

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Words in This List

blue norther

a cold north wind that brings rapidly falling temperatures.

blue moon

the second full moon occurring within a calendar month; informal: once in a blue moon very rarely; almost never.

blue vitriol

a salt, copper sulfate, CuSO⋅5HO, occurring naturally as large transparent, deep-blue triclinic crystals.

blue-ribbon jury

a jury composed of persons having more than ordinary education and presumably exceptional intelligence and perceptiveness, selected by the court on the motion of plaintiff or defendant to try cases of unusual complexity or importance.

Thenard's blue

cobalt blue.

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blue grama

any grass of the genus Bouteloua, of South America and western North America, as B. gracilis.

brittany blue

a medium greenish blue.

blue-pencil

to alter, abridge, or cancel with or as with a pencil that has bluelead, as in editing a manuscript.

blue devils

low spirits; depression.

blue streak

something moving very fast.

blue giant

any of the large, bright stars having surface temperatures of about 20,000 K and diameters that are often ten times that of the sun.

blue chip

a common stock issued by a major company that has financial strength, stability against fluctuations, and a good record of dividend payments: regarded as a low-risk investment.

blue note

a flatted note, especially the third or the seventh degree of the scale, recurring frequently in blues and jazz as a characteristic feature.

code blue

a medical emergency in which paramedics are dispatched to aid a person undergoing cardiac arrest.

blue-eyed

having or representing childlike innocence.

blue blood

an aristocrat, noble, or member of a socially prominent family.

blue ice

the oldest and densest ice in a glacier, distinguished by a pale-blue color.

true-blue

unwaveringly loyal or faithful; staunch; unchangingly true.