The Collaborative International Dictionary
                    Potamian
                    
                        
                
                                                                    Potamian \Po*ta"mi*an\, n. [Gr. ? river.] (Zo["o]l.) A river tortoise; one of a group of tortoises ( Potamites, or Trionychoidea) having a soft shell, webbed feet, and a sharp beak. See Trionyx.
Wiktionary
                    potamian
                    
                        
                
                                                                    n. (context zoology English) A river tortoise; one of a group of tortoises (''Potamites'', or ''Trionychoidea'') having a soft shell, webbed feet, and a sharp beak.
Usage examples of "potamian".
Brother Potamian among the pioneers in antiquity and the Middle Ages are perhaps more interesting than Dr.