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Mare Humorum

[hyoo-mer-uh m, hyoo-mawr-, -mohr-] /ˈhyu mər əm, hyuˈmɔr-, -ˈmoʊr-/
(Sea of Moisture) a dark plain in the third quadrant of the face of the moon: about 45,000 sq. mi. (117,000 sq. km). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Mare Humorum
Historical Examples
  • Toward the southeast appears the notably dark, rounded area of the Mare Humorum inclosed by highlands and rings.

    Pleasures of the telescope Garrett Serviss
  • Mersenius is a very conspicuous ring, forty miles in diameter, east of the Mare Humorum.

    Pleasures of the telescope Garrett Serviss

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