Dictionary
Fra•cas•to•ri•us
Pronunciation: (frä"ka-stôr'ē-us, -stōr'-), [key]—
n.
a walled plain in the fourth quadrant of the face of the moon: about 60 mi. (97 km) in diameter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.