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fail-safe

fail-safe


adjective 
Definition:
 
1. switching to safe condition: designed to switch equipment or a system to a safe condition if there is a fault or failure

2. with safety device: protected by or using a fail-safe mechanism

3. sure to succeed: incapable of failing



verb  (past and past participle fail-safed, present participle fail-saf·ing, 3rd person present singular fail-safes)
Definition:
 
1. transitive verb safeguard something from failure: to make something safe in the event of failure through use of a fail-safe device or procedure

2. intransitive verb U.S. switch to safe condition: to switch automatically to a safe condition in the event of a failure in the supply, control, or structural system of something



noun  (plural fail-safes)
Definition:
 
something that safeguards: a fail-safe device or procedure

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