Definition: Any large macrurous crustacean used as food, esp. those of
the genus Homarus; as the American lobster (H. Americanus), and the
European lobster (H. vulgaris). The Norwegian lobster (Nephrops
Norvegicus) is similar in form. All these have a pair of large unequal
claws. The spiny lobsters of more southern waters, belonging to
Palinurus, Panulirus, and allied genera, have no large claws. The
fresh-water crayfishes are sometimes called lobsters.
