Open English Wordnet
Nouns
(n)black catechu, catechuextract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally
(n)catechu, Jerusalem thorn, Acacia catechuEast Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu