Meaning of Montes Apenninus

Mon•tes Ap•en•ni•nus

Pronunciation: (mon'tus ap"u-nī'nus), [key]
  1. a mountain range in the first and second quadrants of the visible face of the moon, forming the SE border of Mare Imbrium: about 600 miles (970 km) long.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.