balloonfish

noun

A fish of the genus Diodon or Tetraodon, capable of distending its body by taking air or water into its dilatable esophagus.

Synonyms: diodont, porcupinefish

Similar Words

balaclava /ˌbæl.əˈklɑː.və/ balalaika /bæləˈlaɪkə/ balalaikas balance /ˈbæləns/ balanced /ˈbælənst/ balancing balanitis balata balboa /bælˈbəʊə/ balboas