1. A horn-shaped anatomical projection or structure, especially in the brain or spinal cord.
Usage: anatomy; medical
2. A horn-shaped object or formation in general.
Usage: formal; rare

Examples

• The cornu of the lateral ventricle extends into the temporal lobe.
• In neuroanatomy, the dorsal cornu processes sensory information.
• The cornu ammonis is an important structure in memory formation.
• Medical students study the cornu as part of brain anatomy.
• The ventral cornu contains motor neurons.