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


    security blanket

    ; NAmE
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  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