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Mare Serenitatis

[suh-ren-i-tah-tis] /səˌrɛn ɪˈtɑ tɪs/
noun
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).
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Mare Serenitatis
Historical Examples
  • There, they wrinkled whole seas, for instance, Mare Serenitatis.

    All Around the Moon Jules Verne
  • They border the dark, oval plain of the Mare Serenitatis on its northeastern side.

    Pleasures of the telescope Garrett Serviss
  • The Mare Serenitatis is encircled by mountain ranges to a greater extent than any of the other lunar "seas."

    Pleasures of the telescope Garrett Serviss
  • Mount Argus, at the southwest corner of the Mare Serenitatis, is a very wonderful object when the sun has just risen upon it.

    Pleasures of the telescope Garrett Serviss

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