thụ bì

Cây sồi già có lớp thụ bì xù xì.

Definition

1. Noun (Botany):
   • Rhytidome: The outer, dead layer of bark on a tree or woody plant, composed of multiple layers of cork and dead phloem tissue that protect the inner living tissues.

Usage Examples

• Noun:
  • Lớp thụ bì bảo vệ cây khỏi sâu bệnh và mất nước. (The rhytidome protects the tree from pests and water loss.)
  • Khi cây già đi, thụ bì thường trở nên dày và nứt nẻ. (As a tree ages, the rhytidome often becomes thick and fissured.)

Advanced Usage

• In botanical studies, "thụ bì" is a technical term used to describe the specific structure of tree bark, distinguishing it from the inner, living bast (phloem).

Variants and Related Words

• Vỏ cây: (n) bark. A more general, common term for the outer covering of a tree, which includes both the living phloem and the dead rhytidome.
  • Vỏ cây này có nhiều công dụng. (This tree bark has many uses.)

Synonyms

• Outer bark: The non-living, protective outer layer of bark.
• Corky bark: Bark with a texture and function similar to cork, often part of the rhytidome.

Related Terms (Botanical Context)

• Tầng sinh bần: (n) Cork cambium or phellogen. The layer of cells that generates the cork (phellem) which becomes part of the rhytidome.
• Libe: (n) Bast or phloem. The living inner bark that transports nutrients, located beneath the rhytidome.