mega-


  1. variant of megalo- (megalith); also the initial element in units of measure that are equal to one million of the units denoted by the base word (megahertz). Symbol: M

Origin of mega-

1
Combining form representing Greek mégas large, great
  • Also especially before a vowel, meg-.

Words Nearby mega-

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How to use mega- in a sentence

British Dictionary definitions for mega (1 of 2)

mega

/ (ˈmɛɡə) /


adjective
  1. slang extremely good, great, or successful

Origin of mega

1
C20: probably independent use of mega-

British Dictionary definitions for mega- (2 of 2)

mega-

combining form
  1. denoting 10 6: megawatt Symbol: M

  2. (in computer technology) denoting 2 20 (1 048 576): megabyte

  1. large or great: megalith

  2. informal great in importance or amount: megastar

Origin of mega-

2
from Greek megas huge, powerful

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

Scientific definitions for mega-

mega-

  1. A prefix that means:

  2. Large, as in megadose, a large dose.

  1. One million, as in megahertz, one million hertz.

  2. 220 (that is, 1,048,576), which is the power of 2 closest to a million, as in megabyte.

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