mega-
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
Also
especially before a vowel,
meg-.
Origin of mega-
combining form representing Greek
mégas large, great
Words nearby mega-
mefenamic acid,
meff,
mefloquine,
meg,
mega,
mega-,
megabacterium,
megabit,
megabladder,
megabuck,
megabyte
British Dictionary definitions for mega-
mega-
combining form
denoting 10 6
megawatt Symbol: M
(in computer technology) denoting 2 20 (1 048 576)
megabyte
large or great
megalith
informal
great in importance or amount
megastar
Word Origin for mega-
from Greek
megas huge, powerful
Medical definitions for mega-
mega-
pref.
Large:megacephaly.
One million (106):megahertz.
Scientific definitions for mega-
mega-
A prefix that means:
Large, as in megadose, a large dose.
One million, as in megahertz, one million hertz.
220 (that is, 1,048,576), which is the power of 2 closest to a million, as in megabyte.