What's the relation of the word "fallout" with the hypothesis of a nuclear disaster? There is that famous game called "Fallout", and all the post-apocalyptic environment has its roots and causes in the word "fallout".
Is it corret to say:
The ideia of a nuclear fallout frightens everyone.
"fall + out" reminds a nuclear disaster? It makes no sense at all! Maybe the word "fall" carries some negativism by itself (downfall, for example), and the adjective "fallen", and everything related.
But it's still strange.
What are the meanings and usage of the word "fallout"?