logwood
/'lɔgwud/
Học thuậtThân thiện
Definition
- Noun:
- A spiny shrub or small tree: A tropical tree (Haematoxylum campechianum) native to Central America and the West Indies, characterized by bipinnate leaves, clusters of small bright yellow flowers, and a very hard, dense heartwood.
- The heartwood of this tree: The dense, brown to brownish-red wood from the logwood tree, historically valued as a source of dyes.
Usage Examples
Noun (Referring to the tree):
- The logwood is a valuable species for its dye-producing properties.
- They planted logwood along the forest edge.
Noun (Referring to the wood/dye):
- The craftsman used logwood to create a deep, purplish-red stain for the fabric.
- Historically, logwood was a major export from the Caribbean for the textile industry.
Advanced Usage
"Logwood extract": A concentrated form of the dye obtained from the heartwood.
- The artist preferred using logwood extract for its consistent color.
"Logwood black": A specific black or near-black dye color obtained through a particular mordanting process with logwood.
- To achieve a true logwood black, an iron mordant is typically used.
Variants and Related Words
- Haematoxylum campechianum (n): The scientific (Latin) name for the logwood tree.
- Haematoxylin (n): The primary chemical compound extracted from logwood, used as a biological stain in microscopy.
- Haematoxylin is essential for staining cell nuclei in histology.
Synonyms
- Campeachy wood: An archaic name for logwood, derived from the Campeche region of Mexico.
- Bloodwood: A common name referring to the red-colored heartwood or sap of various trees, sometimes used for logwood.
Related Phrases and Compounds
- Logwood tree: The full common name for the plant species.
- Logwood dye: The dye material derived from the wood.
Noun
- spiny shrub or small tree of Central America and West Indies having bipinnate leaves and racemes of small bright yellow flowers and yielding a hard brown or brownish-red heartwood used in preparing a black dye
- very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye