ge·oph·a·gy /ʤiˈɑfəʤi/ 食土的習俗;食土症
ge·oph·a·gy /-əʤɪ-/ 名詞 食土癖
geophagy n : eating earth or clay or chalk; occurs in some primitive tribes or sometimes in cases of nutritional deficiency [syn: geophagia, pica]