a cultivated plant, Armoracia rusticana, of the mustard family, having small, white flowers.
the pungent root of this plant, ground and used as a condiment and in medicine.
the condiment itself, sometimes moistened with vinegar or mixed with ground beets.


of or containing ground horseradish as a flavoring: brisket of beef with horseradish sauce.

Origin of horseradish

First recorded in 1590–1600; horse + radish Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for horseradish

gravy, seasoning, salt, dressing, sauce, relish, spice, mustard, pepper, ketchup, salsa, zest, catsup

Examples from the Web for horseradish

Contemporary Examples of horseradish

  • The Plaza Hotel cooked a fancy-pants latke with red wine braised oxtail, horseradish sunchoke cream, and crispy kale.

    The Daily Beast logo
    I Ate Potato Pancakes Til I Plotzed

    Emily Shire

    December 17, 2014

  • The horseradish is the secret weapon in this quinoa, so definitely make sure to get some, even for just a small amount.

  • Start with the beets and horseradish crème fraiche, then move on to the Ambrosia burger, ending strong with the banana cream pie.

    The Daily Beast logo
    Gal With a Suitcase

    Jolie Hunt

    February 20, 2010

Historical Examples of horseradish

  • If the horseradish is in vinegar, press out the vinegar and then fold in the whipped cream.


    Sarah Tyson Heston Rorer

  • If baked or fried, garnish with horseradish and serve with melted butter.

    Housekeeping in Old Virginia

    Marion Cabell Tyree

  • Season with a little pepper and salt; garnish with horseradish.

    Housekeeping in Old Virginia

    Marion Cabell Tyree

  • The horseradish is probably a descendant of this gigantic ancestor.

  • Why don't the really good things in life grow like horseradish?'

    Tono Bungay

    H. G. Wells

British Dictionary definitions for horseradish



a coarse Eurasian plant, Armoracia rusticana, cultivated for its thick white pungent root: family Brassicaceae (crucifers)
the root of this plant, which is ground and combined with vinegar, etc, to make a sauce
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for horseradish

1590s, Cochlearia armoricia; the common name preserves the once-common figurative sense of horse as "strong, large, coarse" (e.g. in obsolete horse mushroom, horse parsley, Old English horsminte "horse mint," etc.); also see radish.

Online Etymology Dictionary, © 2010 Douglas Harper