'Megalo-' definitions:
Definition of 'Megalo-'
From: GCIDE
- 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