カジカ

noun

sculpin; bullhead; miller's-thumb

General term for any fish of the family Cottidae, including the Japanese fluvial sculpin. Often used in fishing and culinary contexts.

• 川かわでカジカを釣つった。

  I caught a sculpin in the river.

noun

Japanese fluvial sculpin; Cottus pollux

Specifically the species Cottus pollux, a freshwater sculpin native to Japan. Used in biological or precise contexts.

• カジカ（Cottus pollux）は日本にほんの固こ有ゆう種しゅです。

  The Japanese fluvial sculpin (Cottus pollux) is a species endemic to Japan.