horn

(hôrn)

1. One of the hard, usually permanent structures projecting from the head of certain mammals, such as cattle, sheep, goats, or antelopes, consisting of a bony core covered with a sheath of keratinous material.
2. A hard protuberance, such as an antler or projection on the head of a giraffe or rhinoceros, that is similar to or suggestive of a horn.
3. a. The hard smooth keratinous material forming the outer covering of the horns of cattle or related animals.
   b. A natural or synthetic substance resembling this material.
4. A container, such as a powder horn, made from a horn.
5. Something having the shape of a horn, especially:
   a. A horn of plenty; a cornucopia.
   b. Either of the ends of a new moon.
   c. The point of an anvil.
   d. The pommel of a saddle.
   e. An ear trumpet.
   f. A device for projecting sound waves, as in a loudspeaker.
   g. A hollow, metallic electromagnetic transmission antenna with a circular or rectangular cross section.
6. Music
   a. A wind instrument made of an animal horn.
   b. A brass wind instrument, such as a trombone or tuba.
   c. A French horn.
   d. A wind instrument, such as a trumpet or saxophone, used in a jazz band.
7. a. A usually electrical signaling device that produces a loud resonant sound: an automobile horn.
   b. Any of various noisemakers operated by blowing or by squeezing a hollow rubber ball.
8. Slang A telephone.

Related Forms:

• horn horn adjective

• hornˈist noun

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horn

top: white rhinoceros

bottom: American bighorn ram

(hôrn), Cape