( n. )
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.
( n. )
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.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012