Definition of horseradish noun from the Oxford Advanced American Dictionary

     

    horseradish

     noun
    noun
    NAmE//ˈhɔrsˌrædɪʃ//
     
    [uncountable]
     
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  1. 1a hard white root vegetable that has a taste like pepper
  2. 2(also horseradish sauce) a sauce made from horseradish, that is eaten with meat roast beef and horseradish
See the Oxford Advanced Learner's Dictionary entry: horseradish