thresher shark; common thresher shark
Refers to thresher sharks, especially the common thresher shark (Alopias vulpinus). The name comes from its long tail fin.
The thresher shark catches small fish with its long tail.
Katakana spelling is standard for this fish name.
Kanji spelling; rarely used. The word is usually written in kana.
From 尾長 (onaga, 'long tail') + 鮫 (same, 'shark'), referring to the shark's elongated upper tail fin.