Noun | 1. chittimwood - shrubby tree of the Pacific coast of the United States; yields cascara sagradabearberry, bearwood, cascara buckthorn, chittamwood, Rhamnus purshianusbuckthorn - a shrub or shrubby tree of the genus Rhamnus; fruits are source of yellow dyes or pigmentscascara, cascara sagrada, chittam bark, chittem bark - dried bark of the cascara buckthorn used as a laxative | | 2. chittimwood - deciduous tree of southeastern United States and Mexicoblack haw, Bumelia lanuginosa, false buckthorn, shittimwood, chittamwoodbuckthorn - any shrub or small tree of the genus Bumelia |