"thick underground stem," 1660s, from Latin tuber "edible root, truffle; lump, bump, swelling," from PIE *tubh-, from root *teue- (2) "to swell" (see thigh).
例文
1. The potato is a tuber plant.
ジャガイモは塊茎植物である.
2.This is Bulbing, tuber formation,elongation.
これが球茎塊茎の形成であり、抜節.
3.Amylopasts are common in storage organs,e.g.the potato tuber .