horn

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horn

 [horn]
1. a pointed projection such as the paired processes on the head of various animals, or other structure resembling them in shape.
2. an excrescence or projection shaped like the horn of an animal.
anterior horn of spinal cord the horn-shaped configuration presented by the anterior column of the spinal cord in transverse section; called also ventral horn of spinal cord.
cicatricial horn a hard, dry outgrowth from a scar, often scaly and occasionally osseous.
dorsal horn of spinal cord posterior horn of spinal cord.
lateral horn of spinal cord the horn-shaped configuration presented by the lateral column of the spinal cord in transverse section.
posterior horn of spinal cord the horn-shaped configuration presented by the posterior column of the spinal cord in transverse section; called also dorsal horn of spinal cord.
sebaceous horn a hard outgrowth of the contents of a sebaceous cyst.
ventral horn of spinal cord anterior horn of spinal cord.
warty horn a hard, pointed outgrowth of a wart.

horn

(hōrn), [TA]
Any structure resembling a horn in shape.
Synonym(s): cornu (1)
[A.S.]

horn

(hôrn)
n.
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.

horn adj.
horn′ist n.

horn

(hōrn) [TA]
1. A hard projection; consisting largely of compact keratin, tapering to a point, usually paired, on the head of certain mammals.
2. Any structure resembling a horn in shape.
Synonym(s): cornu (1) .
[A.S.]

horn

A rare, age-related local overgrowth of the horny layer of the skin so that a short, cylindrical, horn-like protrusion occurs. Cutaneous horns are easily removed but the base may be found to be cancerous.

horn

(hōrn) [TA]
Any structure resembling a horn in shape.
Synonym(s): cornu (1) .
[A.S.]
References in periodicals archive ?
Why do poachers continue to target hornless rhinos?
To make hornless dairy cows, Fahrenkrug says, he looked up the genetic sequence that naturally causes Angus cattle, a beef variety, to lack horns.
Otherwise, it could result in the division of the marketplace if, for instance one beef packer were to accept only steers, only heifers, only Holsteins, or only hornless cattle.
"We couldn't find a supplier who could do us hornless helmets, so we bought these instead."
The other is Arfidya, sometimes called Tamtam, and are small and hornless. Syrian sheep have a lot of soft wool, and produce a lot of milk, and are more common in the Northern Arabian Peninsula." Abdullah al Haddad was making bird traps out of wood, a skill he learned when he was a child.
In impala, for example, the chance of being injured is considerably higher for poachers when using nets compared to using snares or firearms, so poachers prefer hornless females (and their calves) over horned males.
Statesmanship is found first by separating foot-going herds into hornless, non-interbreeding kinds that go on two feet (265c-266b).
Exasperated by the earthling lunkhead, the Thark leader leans over from his mount on a hornless rhinoceros-like creature and slaps the unsuspecting Carter on the back of his head, as though he were a particularly feckless fifth grader.
They included giants such as Indricotherium, a hornless rhinoceros relative from Eurasia that stood 18ft high and would have dwarfed an African elephant.