Noun american lobster has 2 senses
  1. American lobster, Northern lobster, Maine lobster - flesh of cold-water lobsters having large tender claws; caught from Maine to the Carolinas
    --1 is a kind of lobster
    --1 is a part of
     American lobster, Northern lobster, Maine lobster, Homarus americanus
  2. American lobster, Northern lobster, Maine lobster, Homarus americanus - lobster of Atlantic coast of America
    --2 is a kind of true lobster
    --2 is a member of Homarus, genus Homarus
    --2 has parts: American lobster, Northern lobster, Maine lobster
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