pia
pia[ˈpʌɪə, ˈpiːə](全称 pia mater)noun- [mass noun](Anatomy)the delicate innermost membrane enveloping the brain and spinal cord
(剖)软脑(脊)膜。 参见 meninges
派生pialadjective语源- late 19th cent.: from medieval Latin, in full literally tender mother', translating Arabic al-'ummar-rakīka
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