pia

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pi·a

 (pī′ə, pē′ə)
n.
The pia mater.

pi′al adj.

pia

(ˈpaɪə; ˈpiːə)
n
1. (Anatomy) anatomy the innermost of the three membranes that cover the brain and the spinal cord
2. (Plants) a herb from East India which has an edible root that produces arrowroot starch
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pia - perennial herb of East Indies to Polynesia and Australiapia - perennial herb of East Indies to Polynesia and Australia; cultivated for its large edible root yielding Otaheite arrowroot starch
herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
genus Tacca, Tacca - genus of tropical plants with creeping rootstocks and small umbellate flowers