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1. (adj.) fail-safe
equipped with a secondary system that ensures continued operation even if the primary system fails.
2. fail-safe
denoting a system of safeguards in which bombers may not proceed past a prearranged point or nuclear weapons may not be armed without direct orders.
3. fail-safe
guaranteed to work; totally reliable.
4. (n.) fail-safe
a fail-safe mechanism, system, or the like.
Etymology: (1945–50)
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| Definition of 'fail-safe' |
Princeton's WordNet |
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1. (adj) fail-safe
a mechanism capable of returning to a safe state in case there is a failure or malfunction
2. (adj) fail-safe
guaranteed not to fail
"a fail-safe recipe for cheese souffle"
3. (adj) fail-safe
eliminating danger by compensating automatically for a failure or malfunction
"a fail-safe device in a nuclear weapon to deactivate it automatically in the event of accident"
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