トゲウオ

noun

stickleback

A small fish of the family Gasterosteidae, known for the spines on its back. Common in biology and everyday contexts.

• トゲウオは背せ中なかにとげがある小ちいさな魚さかなです。

  The stickleback is a small fish with spines on its back.

• 川かわでトゲウオを見みつけた。

  I found a stickleback in the river.