Logwood
[lɒgwud]
解釋/意思:
(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.
(noun.) very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye.
乔安妮手打--From WordNet
解釋/意思:
(n.) The heartwood of a tree (Haematoxylon Campechianum), a native of South America, It is a red, heavy wood, containing a crystalline substance called haematoxylin, and is used largely in dyeing. An extract from this wood is used in medicine as an astringent. Also called Campeachy wood, and bloodwood.
編輯:迈尔斯
同義詞及近義詞:
n. Campeachy wood.
整理:莉莲
例句/造句/用法:
- A good black ink can be made by boiling 3 pounds of logwood with sufficient water to leave a residue of 5 quarts. 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- Boil the logwood for 30 minutes in a gallon of water, and then add the copperas and lampblack. 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- Boil the logwood with the water, add the acid and potash, and lastly the dextrine. 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- For example, with alum and oxalic acid as a mordant and logwood as a dye, blue is obtained; but with a mordant of ferric sulphate and a dye of logwood, blacks and grays result. 伯莎M.克拉克. 科學通論.
錄入:劳伦斯