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pia mater

Syllabification: (pi·a ma·ter)

Definition of pia mater

noun

Anatomy
  • the delicate innermost membrane enveloping the brain and spinal cord. See also meninges.

Origin:

late 19th century: from medieval Latin, in full literally 'tender mother', translating Arabic al-'umm ar-raḳīḳa

pia mater in other Oxford dictionaries

Definition of pia mater in the British & World English dictionary