'Pia mater' definitions:

Definition of 'pia mater'

noun

The highly vascular innermost of the 3 meninges

Definition of 'Pia mater'

From: GCIDE

Pia mater \Pi"a ma"ter\ [NL., fr. L. pia (fem. of pius tender, kind) + mater mother.] (Anat.) The delicate and highly vascular membrane immediately investing the brain and spinal cord. [1913 Webster]

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