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Sinus Iridum

[ see-nuhs ir-i-duhm, sahy- ]

noun

  1. ( Bay of Rainbows ) a semicircular dark plain in the second quadrant of the face of the moon.


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Example Sentences

The “moon maiden” is a term applied to a fancied resemblance of a portion of the Sinus Iridum to a female head.

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sinussinusitis