pericyte

[ pĕrĭ-sīt′ ]

n.

A slender, relatively undifferentiated, connective tissue cell that occurs about capillaries or other small blood vessels.adventitial cell
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.