catechu

n 1: extract of the heartwood of Acacia catechu used for dying

and tanning and preserving fishnets and sails; formerly

used medicinally [syn: {black catechu}]

2: East Indian spiny tree having twice-pinnate leaves and

yellow flowers followed by flat pods; source of black

catechu [syn: {Jerusalem thorn}, {Acacia catechu}]