Definitions for "Pericyte"
(pair-ih-site) A type of cell that helps give structure to the walls of blood vessels; when new tumor blood vessels form, they typically lack this type of cell, which leaves them twisted and leaky.
kytos = hollow vessel; mesenchymal cell adjacent to capillaries.
smooth muscle-like cell which covers over blood vessel endothelial cells. (More? Cardiovascular Notes | Lymphatic Notes)