English noun: black catechu | |||
1. | black catechu (plant) extract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally | ||
Synonyms | catechu | ||
Broader (hypernym) | extract, infusion | ||
Substance meronym | Acacia catechu, catechu, Jerusalem thorn | ||