Meg- (?), Meg"a (?), Meg"a*lo- (?). [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, megameter, a million meters; megafarad, a million farads; megohm, a million ohms

.

 

© Webster 1913.