megacosm means A macrocosm. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From French mégacosme, ultimately from Ancient Greek μεγα- (mega-) + κόσμος (kósmos).
noun
- A macrocosm.“Howsoever, over their cloistering walls and into the map of the megacosm, the two professors continued to launch their cadres of spellbound familiars and enslaved disciples.”