(Sea of Showers) a dark plain in the second quadrant of the face of the moon: about 340,000 sq. mi. (880,000 sq. km).
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How to use Mare Imbrium in a sentence
It is about fifty-six miles across, and its interior falls to a depth of 8,000 feet below the Mare Imbrium.Pleasures of the telescope | Garrett Serviss
The Mare Imbrium, covering 340,000 square miles, is sparingly dotted over with craters.Pleasures of the telescope | Garrett Serviss
The Mare Imbrium, according to this view, has been the seat of a collision to which the surrounding lunar scenery is due.The Story of the Heavens | Robert Stawell Ball
The northern slopes of the Carpathians sink rapidly towards the shores of the vast Mare Imbrium.All Around the Moon | Jules Verne
We came to the ledge with the plains of the Mare Imbrium stretching out beneath us.Brigands of the Moon | Ray Cummings