1. 
   sapropelic
   sapropelic 1. Found in, characterized by, or derived from sapropel. 2. A reference to organisms inhabiting mud that is rich in decaying organic matter. 3. An aquatic habitat containing a high concentration of organic matter and a low concentration of dissolved oxygen (frequently anaerobic).
   Found op http://www.wordinfo.info/words/index/info/view_unit/1893/3
   
   

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