very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye
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
双语例句
1. The coloring material of logwood is used in dyes, inks, and stains.
原木的着色材料用于染料，油墨和污渍。
youdao
2. A yellow or red crystalline compound, C16H 14O 6·3H 2O, the coloring material of logwood, that is used in dyes, inks, and stains.
