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Mare Serenitatis: Meaning and Definition of

Ma're Se•ren•i•ta'tis

Pronunciation: (su-ren"i-tä'tis), [key]
  1. (Sea of Serenity) a dark plain in the first quadrant of the face of the moon: about 120,000 sq. mi. (310,000 sq. km).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
mareograph Mare Sirenum
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