WordNet (r) 3.0 (2006):

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