"thick underground stem," 1660s, from Latin tuber "edible root, truffle; lump, bump, swelling," from PIE *tubh-, from root *teue- (2) "to swell" (see thigh).
实用例句
1. The potato is a tuber plant.
马铃薯是块茎植物.
来自《简明英汉词典》
2. This is Bulbing, tuber formation, elongation.
这就是球茎块茎的形成, 拔节.
来自辞典例句
3. Amyloplasts are common in storage organs, e . g . the potato tuber.