nhựa dầu

Cây thông tiết ra nhựa dầu từ vỏ cây.

Definition

1. Noun:
   • Oleoresin: A natural mixture of an essential oil and a resin, exuded from certain plants, especially conifers like pine trees. It is a viscous, often sticky, substance.
   • Crude Turpentine / Pine Sap: The raw, sticky sap collected from pine trees, which can be processed to produce turpentine and rosin.

Usage Examples

• Noun:
  • Nhựa dầu chảy ra từ thân cây thông. (Oleoresin oozes from the pine tree trunk.)
  • Người ta thu hoạch nhựa dầu để sản xuất dầu thông. (People harvest crude turpentine to produce turpentine oil.)

Advanced Usage

• In industry, "nhựa dầu" is the raw material for the distillation of turpentine (a solvent) and the production of rosin (used in varnishes, adhesives, and for violin bows).

Variants and Related Words

• Nhựa thông: A more common specific term for pine resin or pine oleoresin.
  • Nhựa thông thường được lấy từ các loài cây họ Thông. (Pine resin is usually obtained from trees of the Pine family.)

Synonyms

• Oleoresin
• Pine resin
• Gum turpentine (raw)
• Pine sap

Notes

• "Nhựa dầu" is a compound noun. "Nhựa" means resin or sap, and "dầu" means oil, describing its oily, resinous nature.
• It is distinct from petroleum-based products, as it is a plant-derived substance.