ˈ ̷ ̷ˌ ̷ ̷ noun
1. : any of numerous chiefly tropical marine fishes forming the family Tetraodontidae of the order Plectognathi which can distend themselves to a globular form and float belly upward on the surface and most species of which are highly poisonous because of a powerful gastrointestinal irritant contained especially in the skin and viscera — called also balloonfish, puffer
2. : ocean sunfish