megalo-

1.
a combining form with the meanings “large, great, grand,” “abnormally large,” used in the formation of compound words:
megalopolis; megalocardia.
Also, especially before a vowel, megal-.
Compare mega-.
Origin
< Greek, combining form of megal- (stem of mégas) great, large
British Dictionary definitions for megalo-

megalo-

combining form
1.
indicating greatness, or abnormal size: megalopolis, megaloblast
Word Origin
from Greek megas great
Word Origin and History for megalo-

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

megalo- in Medicine

megalo- or megal-
pref.
Large; of exaggerated size or greatness: megalocephaly.