'Homarus Americanus' definitions:

Definition of 'Homarus americanus'

noun

Lobster of Atlantic coast of America [syn: American lobster, Northern lobster, Maine lobster, Homarus americanus]

From: GCIDE

Lobster \Lob"ster\, n. [AS. loppestre, lopystre prob., corrupted fr. L. locusta a marine shellfish, a kind of lobster, a locust. Cf. Locust.] (Zool.)
1. Any large macrurous crustacean used as food, esp. those of the genus Homarus; as the American lobster ({Homarus Americanus}), and the European lobster ({Homarus 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. [1913 Webster]
2. As a term of opprobrium or contempt: A gullible, awkward, bungling, or undesirable person. [Slang] [Webster 1913 Suppl.]
Lobster caterpillar (Zool.), the caterpillar of a European bombycid moth (Stauropus fagi); -- so called from its form.
Lobster louse (Zool.), a copepod crustacean ({Nicotho["e] astaci}) parasitic on the gills of the European lobster. [1913 Webster]

From: GCIDE

maine lobster \maine lobster\ n.
1. Any of several cold-water lobsters with large tender claws, caught from Maine to the Carolinas.
Syn: American lobster, Northern lobster. [WordNet 1.5]
2. A lobster (Homarus americanus) found off the Atlantic coast of North America.
Syn: American lobster, Northern lobster, {Homarus americanus}. [WordNet 1.5]

From: GCIDE

maine lobster \maine lobster\ n.
1. Any of several cold-water lobsters with large tender claws, caught from Maine to the Carolinas.
Syn: American lobster, Northern lobster. [WordNet 1.5]
2. A lobster (Homarus americanus) found off the Atlantic coast of North America.
Syn: American lobster, Northern lobster, {Homarus americanus}. [WordNet 1.5]