1. eating earth, clay, chalk; occurs in some primitive tribes, sometimes in cases of nutritional deficiency or obsessive behavior; [syn: geophagy, geophagia]
WordNet (r) 3.0 (2006):
geophagy
n 1: eating earth, clay, chalk; occurs in some primitive tribes,
sometimes in cases of nutritional deficiency or obsessive
behavior [syn: geophagy, geophagia]