河鲀 hétún pufferfish Origin Definitions Defs Strokes Stroke Words Sentences Sents 河 hé noun river river; waterway鲀 魨 tún pufferfish (bound form) pufferfish; blowfish. A type of fish with a short, thick body that can inflate into a ball-like shape when threatened; many species contain toxins in their internal organs or blood. Also known as 河豚 hétún.