Megalomaniac Megalomaniac is a person with a mania for himself, having a wildly exaggerated view of his own abilities and importance.
Megatrends Megatrends— large social, economic, political, and technological changes that are slow to form, and once in place, have an influence for seven to ten years or longer.
Megalopolis Megalopolis is a densely populated area containing two or more cities and their suburbs.
Switched Multi-Megabit Data service (SMDS) A WAN technology similar to ATM that has a 53-byte fixed-length cell and no error checking. Switched Multi-Megabit Data service (SMDS) offers
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