noun
a rainbow produced by moonlight rather than sunlight
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The moonbow is a rare natural phenomenon that occurs when the moonlight refracts through water droplets in the air.
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I heard there might be a moonbow tonight, so let's go outside and see if we can spot it!
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Check out the cool moonbow in the sky right now, it looks awesome!
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The moonbow of success shone brightly upon her as she achieved her goals.