Today's Word of the Day means...
"A diseased appetite ... prevails in several parts of Alabama, where they eat clay. I heard various speculations on the origin of this singular propensity, called 'geophagy' in some medical books." [Lyell, 1850]
geophagy ge·oph·a·gy (jē-ŏf'ə-jē) or ge·oph·a·gism (-jĭz'əm) or ge·o·pha·gia (jē'ə-fā'jə)
The eating of earthy substances, such as clay or chalk, that is practiced as a custom or for dietary or subsistence reasons. Also called dirt-eating.