pial, a.
(ˈpaɪəl)
[f. pia1 (pia mater) + -al1.]
Of or pertaining to the pia mater.
| 1889 [see pia-arachnoid]. Ibid. 524/1 In some cases also the appropriate adjectives are employed, e.g. pial, dural. 1899 Allbutt's Syst. Med. VI. 502 In general paralysis the invasion is always from the pial surface and vascular tracts. Ibid. VII. 246 Nerve-fibres ramifying over the pial vessels. |