a combining form with the meanings “large, great, grand,” “abnormally large,” used in the formation of compound words: megalopolis; megalocardia.
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Also especially before a vowel, megal-.
Origin of megalo-
< Greek, combining form of megal- (stem of mégas) great, large
Words nearby megalo-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for megalo-
before a vowel megal-
indicating greatness, or abnormal sizemegalopolis; megaloblast
Word Origin for megalo-
from Greek megas great
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for megalo-
Large; of exaggerated size or greatness:megalocephaly.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.