noun
Japanese barracuda
A species of barracuda (Sphyraena japonica) found in Japanese waters. Usually written in katakana as ヤマトカマス.
ヤマトカマスは日本近海で見られる魚です。
The Japanese barracuda is a fish found in the waters around Japan.
釣り人がヤマトカマスを釣り上げた。
The angler caught a Japanese barracuda.
カマス is the general term for barracuda, while ヤマトカマス specifies the Japanese barracuda species.
Compound of 大和 (Yamato, an old name for Japan) and カマス (barracuda). The exact derivation is straightforward; the name simply means 'Japanese barracuda'.