A lobster is a hard-shelled animal that lives in salt water and has two big front claws, or pincers. People who are familiar with red cooked lobsters might be surprised to see that when they're alive they are brown, gray, or even blue.

Lobsters are large crustaceans, which means they're related to shrimp, crabs, crawfish, and even barnacles. They live and feed on the bottom of the ocean, crawling on their ten legs and eating fish, worms, and sea plants. As a food, lobster is considered a delicacy today — although before the mid-19th century, it was thought of as food for poor people and prisoners in coastal New England.

Definitions of lobster
  1. noun
    any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae
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    true lobster
    large edible marine crustaceans having large pincers on the first pair of legs
    Nephrops norvegicus, Norway lobster
    edible European lobster resembling the American lobster but slenderer
    crawfish, crayfish, langouste, rock lobster, sea crawfish, spiny lobster
    large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
    American lobster, Homarus americanus, Maine lobster, Northern lobster
    lobster of Atlantic coast of America
    European lobster, Homarus vulgaris
    lobster of Atlantic coast of Europe
    Cape lobster, Homarus capensis
    small lobster of southern Africa
    type of:
    decapod, decapod crustacean
    crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax
  2. noun
    flesh of a lobster
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    American lobster, Maine lobster, Northern lobster
    flesh of cold-water lobsters having large tender claws; caught from Maine to the Carolinas
    European lobster
    similar to but smaller than American lobsters
    Norwegian lobster, langoustine, scampo
    caught in European waters; slenderer than American lobster
    lobster tail
    lobster tail meat; usually from spiny rock lobsters
    type of:
    meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)
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