Noun order passeriformes has 1 sense
  1. Passeriformes, order Passeriformes - largest order of birds comprising about half the known species; rooks; finches; sparrows; tits; warblers; robins; wrens; swallows; etc.; the four suborders are Eurylaimi and Tyranni and Menurae and Oscines or Passeres
    --1 is a kind of animal order
    --1 is a member of Aves, class Aves
    --1 has members:
     passerine, passeriform bird; Oscines, suborder Oscines, Passeres, suborder Passeres; Menurae, suborder Menurae; Eurylaimi, suborder Eurylaimi; Tyranni, suborder Tyranni; Clamatores, suborder Clamatores; Troglodytidae, family Troglodytidae
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