horseradish root horseradish peroxidase • horseradish sauce · · · Info · Definitions · Synonyms · Characters · · horseradish root · · Text Common · · Latin · · Scripts 16 · · Length 5 · · Syllables Definitions · · · (noun) the root of the horseradish plant; it is grated or ground and used for seasoning. Synonyms: horseradish, horseradish root. · · Noun Definition 1 Synonyms · · · horseradish · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074