Meg-

{ Meg– (mĕg–), Meg″a (mĕg″ȧ–), Meg″a‐lo– (–lō̍–) }. [Gr. μέγασ, gen. μεγάλου, great.] Combining forms signifying: (a) Great, extended, powerful; as, megascope, megacosm. (b) (Metric System, Elec., Mech., etc.)A million times, a million of; as, megameter, a million meters; megafarad, a million farads; megohm, a million ohms.