noun
gigalopolis; giant megalopolis
Rare wasei-eigo term for an extremely large urban region, larger than a typical megalopolis. Used in futuristic or speculative contexts.
wasei-eigo (Japanese-coined English), from bigalopolis
SF小説では、ビガロポリスが未来の都市像として描かれることがある。
In science fiction novels, a gigalopolis is sometimes depicted as a vision of a future city.
メガロポリス is a more common term for a large urban corridor; ビガロポリス is a rare, even larger-scale concept.
Wasei-eigo derived from English 'bigalopolis', a blend of 'big' and 'megalopolis'. The exact origin is uncertain; it appears in speculative and futuristic contexts.