Mare Serenitatis

[ suh-ren-i-tah-tis ]

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).

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Mare Serenitatis in a sentence

  • 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
  • They border the dark, oval plain of the Mare Serenitatis on its northeastern side.

    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
  • There, they wrinkled whole seas, for instance, Mare Serenitatis.

    All Around the Moon | Jules Verne