Definition of "enormodome"

Or somewhere with huge-capacity live music enormodomes that showcase the big acts but no grassroots music scene?

2015, Dave Haslam, Life After Dark: A History of British Nightclubs & Music Venues‎, Simon and Schuster

The live circuit's arenas and stadiums, its enormodomes, are flourishing. I am a habitué of them, particularly the O2 Arena.

2024 February 10, Ludovic Hunter-Tilney, “The age of the stage”, in FT Weekend, Life & Arts, page 1