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megacorporation
megacycle
megadeath
megadose
Megaera
megafauna
megafirm
megagamete
megahertz
megakaryocyte
megakaryocytosis
megal-
megalith
megalo-
megaloblast
megaloblastic anemia
megalocardia
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mega-

mega-


prefix 
Definition:
 
1. one million (106)
Symbol  M

megavolt

2. comput in the binary system, a million (220)
megabyte

3. very large
megadose

4. very great or excellent
megastar

5. to a great extent ( slang )
megarich

[< Greek megas "great" < Indo-European, "large"]
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