megalo-

1. a combining form with the meanings “large, great, grand,” “abnormally large,” used in the formation of compound words: megalopolis; megalocardia.

combining form

1. indicating greatness, or abnormal sizemegalopolis; megaloblast

word-forming element meaning “large, great, exaggerated,” from comb. form of Greek megas “large, great” (stem megal-); see mickle. pref.

1. Large; of exaggerated size or greatness:megalocephaly.