Fish ball in the context of "Oden"

Oden (おでん or 御田) is a type of nabemono (Japanese one-pot dishes) consisting of several ingredients such as boiled eggs, daikon or konjac, and processed fish balls stewed in a light, soy-flavored dashi broth.

Oden was originally what is now commonly called miso dengaku [ja] or simply dengaku; konjac (こんにゃく, konnyaku) or tofu was boiled and eaten with miso. Later, instead of using miso, ingredients were cooked in dashi, and oden became popular. Ingredients vary according to region and between each household. Karashi is often used as a condiment.