Mare Fecunditatis [fey-koo n-di-tah-tis, fee-] noun
- (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
Mare Fecunditatis [fey-koo n-di-tah-tis, fee-] noun