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aves

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aves


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Aves  \A"ves\,  n.  pl  [L.,  pl  of  avis  bird.]  (Zo["o]l.) 
  The  class  of  Vertebrata  that  includes  the  birds. 
 
  Note:  Aves,  or  birds,  have  a  complete  double  circulation, 
  oviparous,  reproduction,  front  limbs  peculiarly 
  modified  as  wings;  and  they  bear  feathers.  All  existing 
  birds  have  a  horny  beak,  without  teeth;  but  some 
  Mesozoic  fossil  birds  (Odontornithes)  had  conical  teeth 
  inserted  in  both  jaws.  The  principal  groups  are: 
  {Carinat[ae]},  including  all  existing  flying  birds; 
  {Ratit[ae]},  including  the  ostrich  and  allies,  the 
  apteryx,  and  the  extinct  moas;  {Odontornithes},  or 
  fossil  birds  with  teeth. 
 
  Note:  The  ordinary  birds  are  classified  largely  by  the 
  structure  of  the  beak  and  feet,  which  are  in  direct 
  relation  to  their  habits.  See  {Beak},  {Bird}, 
  {Odontonithes}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  Aves 
  n  :  birds  [syn:  {Aves},  {class  Aves}] 




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