Definition of "horseradish" []

• A coarse Eurasian plant (Armoracia rusticana) in the mustard family, having a thick, whitish, pungent root, large basal leaves, and white flowers in a terminal panicle. (noun)
• The roots of this plant. (noun)
• A sharp condiment made from the grated roots of this plant. (noun)
• Any of various pungent condiments resembling horseradish, such as wasabi. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Ramsay de Give for The Wall Street Journal The spinach and tofu dip, containing horseradish, is served with brown rice chips."
• "One of the reasons why white horseradish is substituted for wasabi is that up until very recently, it only grew in Japan, and importing it was unbelievably expensive."
• "What it does have in common with horseradish is its incredible pungency, although it is much more fleeting in effect."