Noun osmerus has 1 sense
  1. Osmerus, genus Osmerus - type genus of the Osmeridae
    --1 is a kind of fish genus
    --1 is a member of Osmeridae, family Osmeridae
    --1 has members:
     rainbow smelt, Osmerus mordax; sparling, European smelt, Osmerus eperlanus
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