dầu rái
Definition
- Noun:
- Dammar or Gurjun balsam: A natural resin or oleoresin obtained from trees of the genus Dipterocarpus, particularly Dipterocarpus alatus. It is a viscous, sticky liquid tapped from the tree, which hardens upon exposure to air.
- The tree itself: A common name for the tree species Dipterocarpus alatus, a large tropical hardwood tree native to Southeast Asia, known for producing this resin.
Usage Examples
- Noun (Resin):
- Người ta thu hoạch dầu rái để làm vecni và sơn. (People harvest dammar to make varnish and paint.)
- Dầu rái được dùng để trám thuyền gỗ. (Gurjun balsam is used to caulk wooden boats.)
- Noun (Tree):
- Cây dầu rái là một loài cây gỗ lớn ở rừng nhiệt đới. (The Dipterocarpus alatus tree is a large timber species in tropical forests.)
Advanced Usage
- In traditional medicine and practices, is sometimes used as an ingredient in plasters or for its purported medicinal properties.
- The resin is a key ingredient in traditional wood finishes, waterproofing, and in the manufacture of incense.
Variants and Related Words
- Cây dầu rái (n): The tree.
- Nhựa dầu rái (n): Another term emphasizing the resinous nature of the substance.
Synonyms
- Dammar: A general term for resins from various Dipterocarpaceae trees, used in varnishes.
- Gurjun balsam / Gurjun oil: A specific name for the oleoresin from species.
- Wood oil: A descriptive, non-scientific term sometimes used.
Related Terms
- Dipterocarpus alatus: The scientific name for the primary tree source.
- Dipterocarpaceae: The plant family to which these trees belong.
- Oleoresin: A natural blend of oil and resin, which is the precise category for .