The Collaborative International Dictionary
                    Tetrodon
                    
                        
                
                                                                                        
                            Tetrodon \Tet"ro*don\, n. [Tetra- + Gr. ?, ?, tooth.] (Zo["o]l.) Any one of numerous species of plectognath fishes belonging to Tetrodon and allied genera. Each jaw is furnished with two large, thick, beaklike, bony teeth. [Written also tetradon.]
Note: The skin is usually spinous, and the belly is capable of being greatly distended by air or water. It includes the swellfish, puffer (a), and similar species.
Wiktionary
                    tetrodon
                    
                        
                
                                                                    n. (context zoology English) Any of numerous species of plectognath fishes belonging to ''Tetraodon'' and allied genus.
Wikipedia
                    Tetrodon
                    
                        
                
                                                                    Tetrodon may refer to:
- Dendrobium, a genus of orchid
- Tetraodon, a genus of puffer fish