cambium

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth
• Derivationally related forms:
cambial
• Hypernyms:
vascular tissue
2. the inner layer of the periosteum
• Derivationally related forms:
cambial
• Hypernyms:
stratum
• Part Holonyms:
periosteum