Learn how to say Horseradish correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word horseradish:
a European plant of the cabbage family, with long dock-like leaves, grown for its pungent edible root.
Armoracia rusticana, family Cruciferae
[mass noun] horseradish root, scraped or grated as a condiment and often made into a sauce.