Meg-; Mega; Megalo-

Part of speech: noun (n.)

1. Combining forms signifying: (a) Great, extended, powerful; as, megascope, megacosm. (b) (Metric System, Elec., Mech., etc.)

2. A million times, a million of; as, megameter, a million meters; megafarad, a million farads; megohm, a million ohms.