1. A pathological condition characterized by proliferation of glial cells in the brain or spinal cord, typically in response to injury, infection, or neurodegeneration.
Usage: medical/neurology term; uncountable noun

Examples

• The MRI scan revealed gliosis in the patient's brain following the stroke.
• Chronic inflammation can lead to gliosis and permanent neurological damage.
• Gliosis is a common finding in neurodegenerative diseases like Alzheimer's.
• The extent of gliosis observed in the tissue sample indicated long-standing injury.
• Researchers are studying ways to reduce gliosis and promote neural recovery after spinal cord injury.