Finfish vs. Shellfish

Finfishnoun

Any fish, but especially fish other than flatfish

Shellfishnoun

An aquatic invertebrate having a shell, such as a mollusc or crustacean, especially when edible.

Finfishnoun

A finback whale.

Shellfishnoun

Any aquatic animal whose external covering consists of a shell, either testaceous, as in oysters, clams, and other mollusks, or crustaceous, as in lobsters and crabs.

Shellfishnoun

meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)

Shellfishnoun

invertebrate having a soft unsegmented body usually enclosed in a shell

Shellfish

Shellfish is a colloquial and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms. Although most kinds of shellfish are harvested from saltwater environments, some are found in freshwater.