Definition of roll back phrasal verb from the Oxford Advanced American Dictionary

 

roll back

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    roll somethingback

     
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  1. 1to turn or force something back or further away to roll back the frontiers of space
  2. 2to reduce prices, etc. to roll back inflation
See the Oxford Advanced Learner's Dictionary entry: roll back