rễ bạnh

Cây đa cổ thụ có những rễ bạnh lớn vươn ra từ thân.

Definition

1. Noun (Botany):
   • Buttress root: A large, wide, and often vertically flattened root that grows out from the base of a tree trunk, providing structural support and stability, especially in shallow soil. This is the primary and most accurate meaning.

Usage Examples

• Noun:
  • Cây đa cổ thụ có những rễ bạnh rất lớn. (The ancient banyan tree has very large buttress roots.)
  • Rễ bạnh giúp cây đứng vững trong những cơn bão. (Buttress roots help the tree stand firm during storms.)
  • Chúng tôi ngồi nghỉ dưới bóng mát của một rễ bạnh. (We rested in the shade of a buttress root.)

Advanced Usage

• The term is specific to botany and tree morphology. It describes an adaptive feature common in tropical rainforest trees, such as kapok, certain figs, and mangroves, where soil is thin and stability is a challenge.

Variants and Related Words

• Rễ bành: An older or variant spelling with the same meaning (buttress root).
• Rễ chống (prop root): A related but distinct type of aerial root that grows down from branches to support the tree, like in some banyans or mangroves.
• Rễ phụ (adventitious root): A general term for roots that grow from an unusual place, such as a stem, which includes prop roots and aerial roots.

Synonyms

• Buttress root: The direct and precise scientific synonym.
• Support root: A descriptive, non-technical term.

Related Concepts

• Hệ thống rễ (root system): The complete network of a plant's roots.
• Thân cây (tree trunk): The main structural stem from which buttress roots protrude.