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 ]

n. The condition of being horned. [ 1913 Webster ]

n. (Zool.) The European sand eel. [ Scot. ] [ 1913 Webster ]

n. A genus of Devonian fossil plants considered one of the earliest forms of vascular land plants; it is similar to genus Rhynia but smaller.
Syn. -- genus Horneophyton. [ WordNet 1.5 ]

n. 1. One who works or deal in horn or horns. [ R. ] Grew. [ 1913 Webster ]

2. One who winds or blows the horn. [ Obs. ] Sherwood. [ 1913 Webster ]

3. One who horns or cuckolds. [ Obs. ] Massinger. [ 1913 Webster ]

4. (Zool.) The British sand lance or sand eel (Ammodytes lanceolatus). [ 1913 Webster ]

n. [ AS. hyrnet; akin to OHG. hornaz, hornuz, G. horniss; perh. akin to E. horn, and named from the sound it makes as if blowing the horn; but more prob. akin to D. horzel, Lith. szirszone, L. crabo. ] (Zool.) A large, strong wasp. The European species (Vespa crabro) is of a dark brown and yellow color. It is very pugnacious, and its sting is very severe. Its nest is constructed of a paperlike material, and the layers of comb are hung together by columns. The American white-faced hornet (Vespa maculata) is larger and has similar habits. [ 1913 Webster ]

Hornet fly (Zool.), any dipterous insect of the genus Asilus, and allied genera, of which there are numerous species. They are large and fierce flies which capture bees and other insects, often larger than themselves, and suck their blood. Called also hawk fly, robber fly. --
To stir up a hornet's nest, to provoke the attack of a swarm of spiteful enemies or spirited critics. [ Colloq. ] [ 1913 Webster ]