What does "horseradish root" mean?

the root of the horseradish plant; it is grated or ground and used for seasoning

What is a synonym for "horseradish root"?

Common synonyms include: horseradish, horseradishes.

Rare ·Advanced level

Noun

1
the root of the horseradish plant; it is grated or ground and used for seasoning wordnet