from
The Collaborative International Dictionary of English v.0.48
Bluefish \Blue"fish`\, n. (Zool.)
1. A large voracious fish ({Pomatomus saitatrix}), of the
family {Carangid[ae]}, valued as a food fish, and widely
distributed on the American coast. On the New Jersey and
Rhode Island coast it is called the {horse mackerel}, in
Virginia {saltwater tailor}, or {skipjack}.
[1913 Webster]
2. A West Indian fish ({Platyglossus radiatus}), of the
family {Labrid[ae]}.
[1913 Webster]
Note: The name is applied locally to other species of fishes;
as the cunner, sea bass, squeteague, etc.
[1913 Webster]