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- Dictionarymega-/ˈmɛɡə/
combining form
- 1. large: "megalith"
- 2. (in units of measurement) denoting a factor of one million (106): "megahertz"
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MEGA definition: 1. very good or very big: 2. 1,000,000 times the stated unit: 3. large in amount or size: . Learn more.
1. a. : great : large. megaspore. b. : greatly surpassing others of its kind. megahit. 2. : million (106) megohm. megacycle.
Mega is a unit prefix in metric systems of units denoting a factor of one million (10 6 or 1 000 000). It has the unit symbol M. It was confirmed for use in the International System of Units (SI) in 1960. Mega comes from Ancient Greek: μέγας, romanized: mégas, lit. 'great'.
Mega- definition: 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. See examples of MEGA- used in a sentence.
mega-. a combining form meaning “extremely large, huge,” orig. a variant of megalo- ( megalith ), used also in the names of units of measure equal to one million of a given base unit ( megahertz; megaton ), and by extension, now freely used to form words denoting very large quantities ( megabucks ), large things ( megastructure) or, more ...
extremely: megarich (= extremely rich) one million: 40 megabytes. (Definition of mega- from the Cambridge Learner's Dictionary © Cambridge University Press)
(informal) Very large. Wiktionary. (slang, 1990s) Great; excellent. Wiktionary. affix. Large, great, powerful. Megacephalic, megaphone.
