1. tetrodotoxin

noun. a powerful neurotoxin found in the ovaries of pufferfish.


  • pufferfish
  • neurotoxin
  • sea squab
  • puffer
  • blowfish

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Sentences with tetrodotoxin

1. Noun, singular or mass
According to National Geographic, a pufferfish’s tetrodotoxin is 1,200 times more poisonous than cyanide, and one little pufferfish has enough of it to kill 30 adult humans.