Definition

1. Noun:

   • Oppositifolius yam: A species of yam (Dioscorea opposita or Dioscorea polystachya) native to East Asia, cultivated for its edible tuber.
   • Chinese yam / Nagaimo: The tuber of this plant, used as a food ingredient and a fundamental herb in traditional medicine for its nourishing properties.

2. Noun (Traditional Medicine):

   • A medicinal herb: In traditional medicine systems, it is a key herb used to tonify the spleen and stomach, replenish energy, and stabilize the kidneys.

Usage Examples

• Noun:
  • Củ hoài sơn thường được dùng trong các món hầm. (Oppositifolius yam is often used in stew dishes.)
  • Hoài sơn là một vị thuốc quý trong Đông y. (Chinese yam is a precious herb in traditional Eastern medicine.)
  • Bạn có thể mua hoài sơn khô ở tiệm thuốc Bắc. (You can buy dried Chinese yam at an herbal medicine shop.)

Advanced Usage

• "hoài sơn" as a medicinal component: It is rarely used alone and is typically part of a formulated herbal decoction or remedy.
  • Bài thuốc kết hợp hoài sơn với ý dĩ và bạch truật. (The remedy combines Chinese yam with Job's tears and white atractylodes.)

Variants and Related Words

• Củ hoài sơn (n): Specifically refers to the tuber or root of the plant.
• Sơn dược (n): An alternative name for the same herb, often used in medicinal contexts.
• Khoai mỡ (n): A general term for yam; note that this is a broader category and not a direct synonym for the specific medicinal .

Synonyms

• Chinese yam: The common English name for the tuber.
• Nagaimo: The Japanese name for the tuber, often used in culinary contexts.
• Dioscorea opposita: The botanical name.

Related Terms

• Thuốc bổ (n): Tonic medicine; the category often belongs to.
• Bổ tỳ ích khí (v phrase): To tonify the spleen and boost energy; a key function of this herb in medicine.

1. Oppositifolius yam