1. 
   Geophagist
   Ge·oph'a·gist noun One who eats earth, as dirt, clay, chalk, etc.
   Found op http://www.encyclo.co.uk/webster/G/21
   
   
2. 
   Geophagist
   • (n.) One who eats earth, as dirt, clay, chalk, etc.
   Found op http://thinkexist.com/dictionary/meaning/geophagist/
   
   
3. 
   geophagist
   geophagist One who feeds on soil or earth; such as, clay.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2736/7
   
   

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