[ roo-peez al-tahy ]
/ ˈru piz ˈæl taɪ /
a mountain range in the fourth quadrant of the face of the moon: about 315 miles (507 km) long.
Origin of Rupes Altai
< New Latin: Altai crags
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019