[ oh-see-ah-nuh s proh-suh-lahr-uh m, -an-uh s, oh-shee- ]
/ ˌoʊ siˈɑ nəs ˌproʊ səˈlɑr əm, -ˈæn əs, ˌoʊ ʃi- /
(Ocean of Storms) the largest dark plain on the face of the moon, in the second and third quadrants: about 2 million square miles (5.2 million sq. km).
A massive new planet in our solar system named Tyche? Maybe. But what does “Tyche” mean?There may be a new planet joining the solar system. A provocative hypothesis posed by a duo of planetary astronomers from the University of Louisiana-Lafayette includes the existence of the planet Tyche: a ninth planet estimated to be four times the size of Jupiter located somewhere at the outermost reaches of the solar system. It’s hard to know what is more enjoyable: stories about planets …
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019