pufferfish

noun

1. A type of fish known for its ability to inflate its body by swallowing water or air when threatened.

   A2

   countableneutral

   • "The pufferfish expanded its body to deter the predator."B1
   • "Pufferfish are often considered a delicacy in Japan, despite their toxicity."B2
   • "The pufferfish blew up like a balloon."A1
   • "We saw a small pufferfish in the rock pool."A2
   • "Some species of pufferfish contain a poison called tetrodotoxin."B2