Definition

1. Noun:
   • Rehmannia: A perennial herb (Rehmannia glutinosa) native to East Asia, the root of which is used extensively in traditional medicine.

Usage Examples

• Noun:
  • Rễ địa hoàng được sử dụng trong nhiều bài thuốc Đông y. (Rehmannia root is used in many traditional Eastern medicine remedies.)
  • Cây địa hoàng thường có hoa màu tím. (The rehmannia plant often has purple flowers.)

Advanced Usage

• In traditional medicine contexts, "địa hoàng" is often processed in different ways (e.g., steamed, dried) for specific therapeutic purposes, leading to variants like "sinh địa" (fresh/dried rehmannia) and "thục địa" (processed/steamed rehmannia).

Variants and Related Words

• Sinh địa (hoàng) (n): Fresh or dried rehmannia root, known for its "cooling" properties.
• Thục địa (hoàng) (n): Processed (steamed and cured) rehmannia root, known for its "warming" and tonic properties.

Synonyms

• Rehmannia root: The most direct English equivalent, specifying the medicinal part used.
• Chinese foxglove: A common English name for the plant, referring to its appearance.

Notes on Usage

• "Địa hoàng" is primarily a technical term from botany and traditional medicine. It is not commonly used in everyday conversational Vietnamese outside of these contexts.