tuber
noun /ˈtjuːbə(r)/
/ˈtuːbər/
- the short, thick, round part of an underground stem or root of some plants, such as potatoes, which stores food and from which new plants grow
块茎(某些植物的肉质地下茎);块根 词源mid 17th cent.: from Latin, literally ‘hump, swelling’.