GEOPHAGY

geophagy, geophagia

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

Source: WordNet® 3.1

Etymology

Noun

geophagy (uncountable)

The practice of eating earthy substances such as clay and chalk, often thought to augment a mineral-deficient diet.

Source: Wiktionary

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