geophagia
geop·ha·gia
noun
1.
eating earth or clay or chalk; occurs in some primitive tribes or sometimes in cases of nutritional deficiency
Origin
From geo- + -phagia.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.