Noun alcidae has 1 sense
  1. Alcidae, family Alcidae - web-footed diving seabirds of northern seas: auks; puffins; guillemots; murres; etc.
    --1 is a kind of bird family
    --1 is a member of Charadriiformes, order Charadriiformes
    --1 has members:
     auk; Alca, genus Alca; Plautus, genus Plautus; Pinguinus, genus Pinguinus; Cepphus, genus Cepphus; Uria, genus Uria; puffin; Fratercula, genus Fratercula; Lunda, genus Lunda
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