Mare Humorum

American  

[hyoo-mer-uhm, hyoo-mawr-, -mohr-] / ˈhyu mər əm, hyuˈmɔr-, -ˈmoʊr- /

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

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.

From Scientific American

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.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

Vitello has a bright central mountain and gains conspicuousness from its position at the edge of the dark Mare Humorum.

From Project Gutenberg