rootstock

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a horizontal plant stem with shoots above and roots below serving as a reproductive structure
• Syn:
rhizome, rootstalk
• Derivationally related forms:
rhizomatous (for: rhizome)
• Hypernyms:
stalk, stem
2. root or part of a root used for plant propagation;
especially that part of a grafted plant that supplies the roots
• Hypernyms:
stock