Langrenus: Meaning and Definition of

Lan•gre•nus

Pronunciation: (lan-grē'nus), [key]
— n.
  1. a walled plain in the fourth quadrant of the face of the moon: about 85 miles (135 km) in diameter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.