Dictionary

Yeah, I'm gonna designate these guys as supraingnoranuses, as aerotropolis is not a word.

Though I've some sympathy with the objection, in fairness, English (like ancient Greek, so I've heard and do in part believe) is very flexible about word formation, especially portmanteaus. One could similarly argue that "supraignoramus" isn't a word (let alone what its plural ought to be :-).