root vegetable(n = noun.food) - any of various fleshy edible underground roots or tubers;
is a kind of veg, vegetable, veggie
has particulars: irish potato, murphy, potato, spud, tater, white potato, yam, sweet potato, jerusalem artichoke, sunchoke, beet, beetroot, carrot, celeriac, celery root, salsify, parsnip, radish, turnip, cocoyam, dasheen, edda, taro, taro root

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