Mare Humorum

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

noun

(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).

QUIZZES

IS YOUR DESERT PLANT KNOWLEDGE SUCCULENT OR DRIED UP?

Cactus aficionados, don't get left in the dust with this quiz on desert plants. Find out if you have the knowledge to survive this prickly foray into the desert!
Question 1 of 7
This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020