Geophagy

[dʒi'ɔfәdʒi]

(noun.) eating earth, clay, chalk; occurs in some primitive tribes, sometimes in cases of nutritional deficiency or obsessive behavior.

Edited by Enrico--From WordNet

n. the act or practice of eating earth—also Geoph′agism.—n. Geoph′agist.—adj. Geoph′agous.

Checked by Francis