From Longman Dictionary of Contemporary Englishhorseradishhorse‧rad‧ish /ˈhɔːsˌrædɪʃ $ ˈhɔːrs-/ noun [countable, uncountable] HBPDFFa plant whose root has a very strong hot taste
Examples from the Corpus
horseradish• Stir in horseradish and vinegar and adjust seasoning to taste.• Dill and pickles, for example, are a strange combination, as is horseradish and roast beef.• Remove from heat and stir in mustards, horseradish and sour cream. 