Definition of "luminousness" [lu•mi•nous•ness]

• The condition of being luminous (noun)

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• "He seeks to assess mysticism's veracity not merely on account of its "luminousness"."
• "Radium Coke - Not to be outdone by rival Pepsi, Coca-Cola introduces its latest product with an epic commercial that salutes its own 1971 hilltop "I'd like to buy the world a Coke" ad, with a cross-section of new, hip young people singing at night, their bodies aglow in radioactive luminousness caused by ingesting the metallic element."
• "Abe Lincoln had the ears (and the beard, and the stove-pipe hat); Bill Clinton had a nose that glowed red, almost to luminousness, as his allergies assailed him."