Petavius: Meaning and Definition of

Pe•ta•vi•us

Pronunciation: (pi-tä'vē-us), [key]
— n.
  1. a walled plain in the fourth quadrant of the face of the moon: about 100 miles (160 km) in diameter from crest to crest.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.