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

2 senses of 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))

Sense 2
catechu, Jerusalem thorn, Acacia catechu -- (East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu)
       => acacia -- (any of various spiny trees or shrubs of the genus Acacia)