Megasyse

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Megasyse is a term referring to systems with a million or millions of members.

Subterms
The following terms have been coined by Souls Labyrinth:

History
Every prefix used here is a Greek numerical prefix. "Mega-" is often used to refer to something within the millions. These are also based on large polygons (ex. megagons)! "-syse" is the Middle English version of "size".