pia : Idioms & Phrases

Index

pia mater

  • noun the highly vascular innermost of the 3 meninges
WordNet
Pi"a ma"ter
Etymology
NL., fr. L. pia (fem. of pius tender, kind) + mater mother.
Definitions
  1. (Anat.) The delicate and highly vascular membrane immediately investing the brain and spinal cord.
Webster 1913