ˈ ̷ ̷| ̷ ̷ ̷ ̷ noun
1.
a. : a tall coarse white-flowered herb ( Armoracia lapathifolia ) native to Europe and widely cultivated
b. : the pungent root of horseradish
c. : kerguelen cabbage
2. : a condiment made of the grated root of the horseradish plant often moistened with vinegar or a similar substance