Skip to main content
Select Source:

mega-

mega- (symbol: M) A prefix indicating a multiple of one million (106), as in megahertz and megawatt. When the binary number system is used in a structure or process (as in semiconductor RAM or ROM), the prefix then indicates a multiple of 220, i.e. 1 048 576, as in megabyte or megabit. The context usually clarifies which meaning is intended, although being numerically close the meanings are often considered more or less equivalent.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." A Dictionary of Computing. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." A Dictionary of Computing. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/mega

"mega-." A Dictionary of Computing. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/mega

mega-

mega- • comb. form 1. very large in size, extent, capacity, or amount: megalith. 2. (in units of measurement) denoting a factor of one million (106): megahertz megadeath. 3. Comput. denoting a factor of 220.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/mega-1

"mega-." The Oxford Pocket Dictionary of Current English. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/mega-1

mega-

mega-
1. A prefix denoting large size; e.g. meganucleus, megasporangium.

2. Symbol M. A prefix used in the metric system to denote one million times. For example, 106 volts = 1 megavolt (MV).

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." A Dictionary of Biology. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." A Dictionary of Biology. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega-1

"mega-." A Dictionary of Biology. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega-1

mega-

mega-, before a vowel meg-, comb. form of Gr. mégas great (see MAGNITUDE), as in megalithic, megaphone, megatherium XIX; similarly megal(o-), the Gr. stem, as in megalomania XIX.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/mega-2

"mega-." The Concise Oxford Dictionary of English Etymology. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/mega-2

mega-

mega-(M-) From the Greek megas, meaning ‘great’, a prefix meaning ‘very large’. Attached to SI units, it denotes the unit × 106.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." A Dictionary of Ecology. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." A Dictionary of Ecology. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega-0

"mega-." A Dictionary of Ecology. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega-0

mega-

mega-(M-) From the Greek megas meaning ‘great’, a prefix meaning ‘very large’. Attached to SI units, it denotes the unit × 106.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." A Dictionary of Earth Sciences. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." A Dictionary of Earth Sciences. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega

"mega-." A Dictionary of Earth Sciences. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mega

mega-

mega- combining form denoting
1. large size or abnormal enlargement or distension.

2. a million.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"mega-." A Dictionary of Nursing. . Encyclopedia.com. 12 Dec. 2017 <http://www.encyclopedia.com>.

"mega-." A Dictionary of Nursing. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/mega

"mega-." A Dictionary of Nursing. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/mega