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Mare Humorum

[ hyoo-mer-uhm, hyoo-mawr-, -mohr- ]

noun

  1. ( 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).


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Example Sentences

Several Italian streets, piazzas and lecture halls are named after him, as is a moon crater near the Mare Humorum.

Herschel, with his good telescopes, becoming convinced that there were forests on the Moon, in the Mare humorum, and speculating that the Sun’s dark spots were actually holes in a glowing hot atmosphere, beneath which, a cool surface supported large alien beings.

Thus the Mare Humorum has swept away half the wall of the rings, Hippalus and Doppelmayer, and far out in the open plain of the Mare Nubium, great circles like Kies, and that immediately north of Flamsteed, stand up in faint relief as of half-submerged rings.

Toward the southeast appears the notably dark, rounded area of the Mare Humorum inclosed by highlands and rings.

Mersenius is a very conspicuous ring, forty miles in diameter, east of the Mare Humorum.

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