meg

from WordNet (r) 3.0 (2006)

meg
    n 1: the number that is represented as a one followed by 6 zeros
         [syn: {million}, {1000000}, {one thousand thousand}, {meg}]

from The Collaborative International Dictionary of English v.0.48

Meg- \Meg-\ (m[e^]g-), Mega \Meg"a\ (m[e^]g"[.a]-), Megalo-
\Meg"a*lo-\ (m[e^]g"[.a]*l[-o]-). [Gr. me`gas, gen. mega`loy,
   great.]
   Combining forms signifying:
   (a) Great, extended, powerful; as, megascope, megacosm.
   (b) (Metric System, Elec., Mech., etc.) A million times, a
       million of; as, megabyte, a million butes; megawatt, a
       million watts; megameter, a million meters; megafarad, a
       million farads; megohm, a million ohms.
       [1913 Webster +PJC] Megacephalic

from Jargon File (4.4.4, 14 Aug 2003)

meg
 /meg/, n.

   See {quantifiers}.

from The Free On-line Dictionary of Computing (8 July 2008)

megabyte
meg

   <unit> ({MB}, colloquially "meg") 2^20 = 1,048,576 {bytes} =
   1024 {kilobytes}.  1024 megabytes are one {gigabyte}.

   The text of a six hundred page paperback book would require
   about a megabyte of {ASCII} storage.

   See {prefix}.

   (1997-03-26)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

MEG
       Mega Evil Grin (slang, Usenet, IRC)