Wiktionary
megacorp
n. (context informal English) A very large corporation; megacorporation.
Usage examples of "megacorp".
Though no single megacorp owned it, or even occupied a majority of its space, many had offices there.
Superpowerful megacorps dominate the economic and political scenes, and espionage and covert violence characterize international relations.
Giant icons in a bewildering variety of shapes and colors marked the cyberspace locations of the megacorps, and towered over the lesser images representing the computer systems of smaller companies.