Definition of mega- in English:

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Pronunciation: /ˈmeɡə-/


1Very large in size, extent, capacity, or amount: megalith
2(In units of measurement) denoting a factor of one million (106): megahertz megadeath
3 Computing Denoting a factor of 220.


From Greek megas 'great'.

For editors and proofreaders

Syllabification: mega-

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