chittimwood n 1: shrubby tree of the Pacific coast of the United States; yields cascara sagrada [syn: {cascara buckthorn}, {bearberry}, {bearwood}, {chittamwood}, {Rhamnus purshianus}] 2: deciduous tree of southeastern United States and Mexico [syn: {false buckthorn}, {chittamwood}, {shittimwood}, {black haw}, {Bumelia lanuginosa}]