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horn medical definition
noun
- One of the hard, usually permanent structures projecting from the head of certain mammals, such as cattle, consisting of a bony core covered with a sheath of keratinous material.
- A hard protuberance that is similar to or suggestive of a horn.
- The hard, smooth keratinous material forming the outer covering of animal horns.
- Any of the major subdivisions of the lateral ventricle in the cerebral hemisphere of the brain: the frontal horn, occipital horn, and temporal horn. Also called cornu.
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