eagle \ea"gle\, n. oe. egle, f. aigle, fr. l. aquila; prob.
   named from its color, fr. aquilus dark-colored, brown; cf.
   lith. aklas blind. cf. aquiline.
   1. zo"ol. any large, rapacious bird of the falcon family,
      esp. of the genera aquila and haliaeetus. the eagle
      is remarkable for strength, size, graceful figure,
      keenness of vision, and extraordinary flight. the most
      noted species are the golden eagle aquila
      chrysa"etus; the imperial eagle of europe aquila
      mogilnik or aquila imperialis; the american bald eagle
      haliaeetus leucocephalus; the european sea eagle
      haliaeetus albicilla; and the great harpy eagle
      thrasaetus harpyia. the figure of the eagle, as the
      king of birds, is commonly used as an heraldic emblem, and
      also for standards and emblematic devices. see bald
      eagle, harpy, and golden eagle.
      1913 webster

   2. a gold coin of the united states, of the value of ten
      dollars.
      1913 webster

   3. astron. a northern constellation, containing altair, a
      star of the first magnitude. see aquila.
      1913 webster

   4. the figure of an eagle borne as an emblem on the standard
      of the ancient romans, or so used upon the seal or
      standard of any people.
      1913 webster

            though the roman eagle shadow thee.   --tennyson.
      1913 webster

   note: some modern nations, as the united states, and france
         under the bonapartes, have adopted the eagle as their
         national emblem. russia, austria, and prussia have for
         an emblem a double-headed eagle.
         1913 webster

   bald eagle. see bald eagle.

   bold eagle. see under bold.

   double eagle, a gold coin of the united states worth twenty
      dollars.

   eagle hawk zo"ol., a large, crested, south american
      hawk of the genus morphnus.

   eagle owl zo"ol., any large owl of the genus bubo,
      and allied genera; as the american great horned owl bubo
      virginianus, and the allied european species b.
      maximus. see horned owl.

   eagle ray zo"ol., any large species of ray of the genus
      myliobatis esp. m. aquila.

   eagle vulture zo"ol., a large west african bid
      gypohierax angolensis, intermediate, in several
      respects, between the eagles and vultures.
      1913 webster
see also:
aquiline aquila haliaeetus aquila chrysa"etus aquila mogilnik aquila imperialis 
haliaeetus leucocephalus haliaeetus albicilla thrasaetus harpyia bald eagle harpy 
golden eagle bald eagle bold eagle bold double eagle 
eagle hawk morphnus eagle owl bubo bubo virginianus 
b. maximus horned owl eagle ray myliobatis m. aquila 
eagle vulture gypohierax angolensis