noun
John Dory (Zeus faber)
A marine fish with a distinctive dark spot on each side; the Japanese name is usually written in katakana.
マトウダイは高級魚として知られている。
The John Dory is known as a high-grade fish.
The name マトウダイ is said to come from the dark spot on its side resembling a target (的, mato) and 鯛 (tai, sea bream), though the exact derivation is uncertain.