Balloon fish

1. A fish of the genus Diodon or the genus Tetraodon, having the power of distending its body by taking air or water into its dilatable esophagus. See Globefish, and Bur fish.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.