superinjunction - definition and synonyms

noun [countable] legal British 

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/ˈsuːpə(r)inˌdʒʌŋkʃ(ə)n/
singularsuperinjunction
pluralsuperinjunctions
  1. a kind of injunction that stops journalists from writing about a particular topic, and which also stops them from saying who or what the injunction refers to

    The existence of the superinjunction was revealed only when it was referred to in a parliamentary question.