'ball fish' definitions:
Definition of 'ball fish'
From: GCIDE
- Bur fish \Bur" fish`\ (Zool.) A spinose, plectognath fish of the Allantic coast of the United States (esp. Chilo mycterus geometricus) having the power of distending its body with water or air, so as to resemble a chestnut bur; -- called also ball fish, {balloon fish}, and swellfish. [1913 Webster]