from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The eating of earthy substances, such as clay or chalk, practiced among various peoples as a custom or for dietary or subsistence reasons.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The practice of eating earthy substances such as clay and chalk, often thought to augment a mineral-deficient diet.
from The Century Dictionary and Cyclopedia
- n. The act or practice of eating earth, as dirt, clay, chalk, etc. See dirt-eating. Also geophagism.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. eating earth, clay, chalk; occurs in some primitive tribes, sometimes in cases of nutritional deficiency or obsessive behavior
From geo- (earth) and the suffix -phagy (to feed on) (Wiktionary)