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Definition of pufferfish noun from the Oxford Advanced American Dictionary

 

pufferfish

 noun
noun
NAmE//ˈpʌfərˌfɪʃ//
 
(pl. pufferfish or pufferfishes) (also pufffer)
 
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a poisonous fish that lives in warm seas and fills with air when it is in danger
See the Oxford Advanced Learner's Dictionary entry: pufferfish