Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun black_catechu

1 sense of black catechu

Sense 1
black catechu, catechu -- (extract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally)
       => infusion, extract -- (a solution obtained by steeping or soaking a substance (usually in water))