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Pronunciation: per'i-sit

Definition: One of the slender, mesenchymallike cells found in close association with the outside wall of postcapillary venules; it is relatively undifferentiated and may become a fibroblast, endothelial cell, or smooth muscle cell.

Synonym(s): adventitial cell, pericapillary cell, perithelial cell

[peri- + G. kytos, cell]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.