| Definition of 'Passeriformes' |
Princeton's WordNet |
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1. (noun) 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
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| Definition of 'Passeriformes' |
U.S. National Library of Medicine |
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1. Passeriformes
A widely distributed order of perching BIRDS, including more than half of all bird species.
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Definitions of Passeriformes 
