guaiacum
/'gwaiəkəm/
Học thuậtThân thiện
Definition
- Noun:
- A small genus of tropical trees and shrubs: Guaiacum refers to a genus of slow-growing, evergreen trees and shrubs native to the warm and tropical regions of the Americas.
- A type of very hard wood: Guaiacum is the name for the dense, greenish-brown wood from trees of this genus, especially the lignum vitae tree.
- A medicinal resin: Guaiacum is a resin obtained from these trees, historically used for its medicinal properties.
Examples of Usage
- Noun (Genus):
- The guaiacum is known for its beautiful blue flowers and tough wood.
- Several species of guaiacum are endangered due to overharvesting.
- Noun (Wood):
- The ship's propeller shaft bearings were made of guaiacum because of its self-lubricating properties.
- Craftsmen value guaiacum for its exceptional density and durability.
- Noun (Resin):
- Historically, guaiacum resin was used as a treatment for syphilis.
- The guaiacum test is a chemical test for blood, using the resin's peroxidase-like activity.
Advanced Usage
- "Guaiacum officinale": The scientific name for one of the most well-known species, often called lignum vitae.
- Guaiacum officinale is the national flower of Jamaica.
- "Guaiacum sanctum": Another important species within the genus.
- Guaiacum sanctum is also a source of the valuable lignum vitae wood.
Variants and Related Words
- Guaiac (noun): An alternative spelling for the resin.
- The test requires a solution of guaiac.
- Lignum Vitae (noun): A common name for the tree and its wood, meaning "wood of life" in Latin.
- Lignum vitae, from the guaiacum tree, is one of the hardest woods in the world.
Synonyms
- Lignum vitae: For the wood.
- Guaiac resin: For the medicinal resin.
Related Phrases and Compounds
- Guaiac test: A medical or forensic test for the presence of blood.
- The stool sample was positive on the guaiac test.
- Guaiac wood oil: An essential oil derived from the wood.
- Guaiac wood oil is used in perfumery for its smoky, tea-like scent.
Noun
- small genus of evergreen resinous trees or shrubs of warm and tropical America
- hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum
- medicinal resin from the lignum vitae tree