Definition
pia
noun
- The innermost membrane that covers the brain and spinal cord.
Usage: anatomy; medical; also called pia mater
Examples
- The pia is a delicate membrane that lies directly against the surface of the brain.
- Doctors examined the pia mater during the neurosurgical procedure.
- Inflammation of the pia can lead to serious complications.
- The pia contains blood vessels that supply the brain with oxygen and nutrients.