Catechu - Definition

n 1: extract of the heartwood of Acacia catechu used for dyeing
and tanning and preserving fishnets and sails; formerly
used medicinally [syn: black catechu, catechu]
2: East Indian spiny tree having twice-pinnate leaves and yellow
flowers followed by flat pods; source of black catechu [syn:
catechu, Jerusalem thorn, Acacia catechu]