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megalo-

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

    megalopolis; megalocardia.


megalo- British  

combining form

  1. indicating greatness, or abnormal size

    megalopolis

    megaloblast

"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

Usage

What does megalo- mean? Megalo- is a combining form used like a prefix meaning “large, great, grand, abnormally large.” It is used in many scientific and medical terms. Megalo- ultimately comes from the Greek mégas, meaning “great, large.”What are variants of megalo-?When combined with words or word elements that begin with a vowel, megalo- becomes megal-, as in megalopsia. Another variant of megalo- are you may be familiar with is mega-, as in megaphone or megabyte. Mega- is also used as a unit of measure prefix to indicate a fact of one million (e.g., megahertz). Corresponding forms of megalo- combined to the end of words are -megaly and -megalia.

Etymology

Origin of megalo-

< Greek, combining form of megal- (stem of mégas ) great, large