Cite
 

Meaning of Mare Frigoris

Ma're Fri•go'ris

Pronunciation: (fri-gôr'is, -gōr'-), [key]
  1. (Sea of Cold) a dark plain in the northern hemisphere, in the first and second quadrants of the face of the moon: about 55 mi. (90 km) wide at its narrowest width and 750 mi. (1200 km) long: about 67,000 sq. mi. (174,000 sq. km).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.