Bedeutung von “meltdown” — Learner’s Dictionary

meltdown

noun [ C, U ] us uk /ˈmeltdaʊn/
FAILURE informal

a situation of complete failure and no control:

economic meltdown
NUCLEAR POWER

a serious accident in which nuclear fuel melts through its container and escapes into the environment

(Definition von “meltdown” aus dem Cambridge Learner's Dictionary © Cambridge University Press)