Definition of security blanket noun from the Oxford Advanced Learner's Dictionary

     

    security blanket

     noun
    noun
    BrE
     
    ; NAmE
     
     
    jump to other results
  1. 1(British English also comfort blanket) a blanket or other object that a child holds in order to feel safe
  2. 2something that provides protection against attack, danger, etc. A firewall provides an essential security blanket for your computer network.
  3. 3(British English) official orders or measures that prevent people from knowing about, seeing, etc. something The government has thrown a security blanket around the talks.
See the Oxford Advanced American Dictionary entry: security blanket