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Mare Cimmerium

[si-meer-ee-uh m] /sɪˈmɪər i əm/
(Cimmerian Sea) an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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  • He squinted through the port at the gray gloom of the Mare Cimmerium.

    Valley of Dreams Stanley Grauman Weinbaum

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