[shel-fish] 
) -fish, (especially referring to two or more kinds or species) -fish⋅es. | an aquatic animal having a shell, as the oyster and other mollusks and the lobster and other crustaceans. |
| shell·fish (shěl'fĭsh') n. pl. shellfish or shell·fish·es An aquatic animal, such as a mollusk or crustacean, that has a shell or shell-like exoskeleton. shell'fish'ing n. |