Collins Concise English Dictionary © HarperCollins Publishers::

porcupine fish n
  1. any of various plectognath fishes of the genus Diodon and related genera, of temperate and tropical seas, having a body that is covered with sharp spines and can be inflated into a globe: family Diodontidae
    Also called: globefish

'porcupine fish' also found in these entries:
In the English description:

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