The Collaborative International Dictionary of English v.0.48:

Horned \Horned\, a.
   Furnished with a horn or horns; furnished with a hornlike
   process or appendage; as, horned cattle; having some part
   shaped like a horn.
   [1913 Webster]

         The horned moon with one bright star
         Within the nether tip.                   --Coleridge.
   [1913 Webster]

   Horned bee (Zool.), a British wild bee (Osmia bicornis),
      having two little horns on the head.

   Horned dace (Zool.), an American cyprinoid fish (Semotilus
      corporialis) common in brooks and ponds; the common chub.
      See Illust. of Chub.

   Horned frog (Zool.), a very large Brazilian frog
      (Ceratophrys cornuta), having a pair of triangular horns
      arising from the eyelids.

   Horned grebe (Zool.), a species of grebe (Colymbus
      auritus), of Arctic Europe and America, having two dense
      tufts of feathers on the head.

   Horned horse (Zool.), the gnu.

   Horned lark (Zool.), the shore lark.

   Horned lizard (Zool.), the horned toad.

   Horned owl (Zool.), a large North American owl (Bubo
      Virginianus), having a pair of elongated tufts of
      feathers on the head. Several distinct varieties are
      known; as, the Arctic, Western, dusky, and striped horned
      owls, differing in color, and inhabiting different
      regions; -- called also great horned owl, horn owl,
      eagle owl, and cat owl. Sometimes also applied to the
      long-eared owl. See Eared owl, under Eared.

   Horned poppy. (Bot.) See Horn poppy, under Horn.

   Horned pout (Zool.), an American fresh-water siluroid fish;
      the bullpout.

   Horned rattler (Zool.), a species of rattlesnake (Crotalus
      cerastes), inhabiting the dry, sandy plains, from
      California to Mexico. It has a pair of triangular horns
      between the eyes; -- called also sidewinder.

   Horned ray (Zool.), the sea devil.

   Horned screamer (Zool.), the kamichi.

   Horned snake (Zool.), the cerastes.

   Horned toad (Zool.), any lizard of the genus Phrynosoma,
      of which nine or ten species are known. These lizards have
      several hornlike spines on the head, and a broad, flat
      body, covered with spiny scales. They inhabit the dry,
      sandy plains from California to Mexico and Texas. Called
      also horned lizard.

   Horned viper. (Zool.) See Cerastes.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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["o]l.) Any large, rapacious bird of the Falcon family,
      esp. of the genera Aquila and Hali[ae]etus. 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["e]tus); the imperial eagle of Europe (Aquila
      mogilnik or Aquila imperialis); the American bald eagle
      (Hali[ae]etus leucocephalus); the European sea eagle
      (Hali[ae]etus 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.
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   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["o]l.), a large, crested, South American
      hawk of the genus Morphnus.

   Eagle owl (Zo["o]l.), 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["o]l.), any large species of ray of the genus
      Myliobatis (esp. M. aquila).

   Eagle vulture (Zo["o]l.), a large West African bid
      (Gypohierax Angolensis), intermediate, in several
      respects, between the eagles and vultures.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Bubo virginianus
    n 1: brown North American horned owl [syn: great horned owl,
         Bubo virginianus]