'Passerine' definitions:

Definition of 'passerine'

(from WordNet)
adjective
Relating to or characteristic of the passeriform birds [ant: nonpasserine]
noun
Perching birds mostly small and living near the ground with feet having 4 toes arranged to allow for gripping the perch; most are songbirds; hatchlings are helpless [syn: passerine, passeriform bird]

Definition of 'Passerine'

From: GCIDE
  • Passerine \Pas"ser*ine\, n. (Zool.) One of the Passeres. [1913 Webster]

Definition of 'Passerine'

From: GCIDE
  • Passerine \Pas"ser*ine\, a. [L. passerinus, fr. passer a sparrow.] (Zool.) Of or pertaining to the Passeres. [1913 Webster]
  • The columbine, gallinaceous, and passerine tribes people the fruit trees. --Sydney Smith. [1913 Webster]