Steak is composed of muscle tissue. That's about as scientific as we can get with it.
Protein
The other name for fish meat is seafood!
There is no scientific name for just big fish.
Erpetoichthys calabaricus is the scientific name for the reed fish
The scientific name for a clown fish is a amphiprioninae.
Fish
The scientific name for a puffer fish is the Tetraodontidae
The scientific or taxonomic name would be Gasterosteus spp.
The scientific name of the Mosquito fish is Gambusia affinis. It belongs to the family Poeciliidae and the order Cyprinodontiformes.
The scientific term for a meat eater is "carnivore." Carnivores are animals that primarily consume meat as their main food source.
the scientific name for the bleeding heart tetra fish is Hyphessobrycon erythrostigma
the scientific name for the blood fin tetra fish is Aphyocharax anisitsi
The scientific or taxonomic name would be Tilapia spp.