daikon

noun3

1. •
   An East Asian cultivar or subspecies of garden radish (Raphanus raphanistrum subsp. sativus, syn. Raphanus sativus) bearing a large, white, carrot-shaped taproot consumed throughout East and South Asia but grown in North America primarily as a fallow crop for its fast-growing leaves (used as animal fodder) and as a soil ripper.
2. •
   The usual Japanese cultivar, Japanese radish.

   • Jiko was washing these big white daikons, and I was cutting them up and salting them and putting them into plastic freezer bags. — 2013
3. •
   Closely-related cultivars such as the enormous turnip-shaped Sakurajima or green-and-red watermelon radish.