PUFFERFISH
puffer, pufferfish, blowfish, globefish
(noun) any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers
blowfish, sea squab, puffer, pufferfish
(noun) delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver
Source: WordNet® 3.1
Etymology
Noun
pufferfish (plural pufferfish or pufferfishes)
Any species of fish of the family Tetraodontidae that have the ability to inflate themselves to a globe several times their normal size by swallowing water or air when threatened; puffer, blowfish, swellfish, balloonfish, globefish.
A delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins; (Japanese) fugu.
Synonyms
• (fish): balloonfish, blowfish, globefish, puffer, swellfish
• (dish): fugu
Source: Wiktionary