English Explanatory Dictionary

mega-

English dictionary entry

Meanings

prefix
  1. Very large, great.
  2. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by one million (10⁶).
  3. Multiplying the unit to which it is attached by 2²⁰ (= 1,048,576, the binary number closest to a million). Computing symbol: Mi.
  4. Multiplying the unit to which it is attached by 2¹⁰ × 10³ (= 1,024,000, the binary round number closest to a million).
  5. Really, very, uber-, super-.

Pronunciation

mĕgʹə /ˈmɛɡə/ LL-Q1860 (eng)-Vealhurl-mega-.wav /ˈmeɪɡə/

Word forms

mega-

Etymology

Etymology tree Proto-Indo-European *méǵh₂s Proto-Hellenic *mégas Ancient Greek μέγᾰς (mégăs)der. English mega- From Ancient Greek μέγας (mégas, “great, large, mighty”), from Proto-Indo-European *meǵh₂s (“great”). Cognate with Latin magnus, Sanskrit मह (maha, “great, massive, large-scale, epic”), and with Germanic words: Gothic 𐌼𐌹𐌺𐌹𐌻𐍃 (mikils), Old English micel, Middle English muchel, English much, Old High German mihhil, Old Norse mikill, Danish meget.

Synonyms

meg- super- supra- hyper- ultra- uber- arch- over- giga- -zilla grand megalo- megal- million mul:M

Antonyms

micro-

Related words

mega much almagest mul:M-

Derived words

mega megabar megabase megabit megabucks megabyte megacephalic megacephalous megacephaly Megacheiroptera megacity megacurie megacycle megadeath megadonor megadose megadyne megafarad megafauna megaflop megaflora megagamete megagauss megagram megagramme megaherbivore megahertz megajoule megalith megalithic megalitre megaliter megalomania megalomaniac megalomanic megametre megameter megamind meganewton megapack megaparsec megaphone megapixel megapode megapolis megarad megascope megasporangium megaspore megasporic megasporophyll megastar megastore megastorm megastructure megatechnology megathere megatherian Megatherium megaton
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