from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. A fish of the family Diodontidæ; a porcupine-fish.
Sorry, no etymologies found.