peripolesis

Penetration of migrating cells between fixed tissue cells that are normally in close contact. [peri- + G. poleomai, to wander]

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peri·po·le·sis (per″ĭ-po-leґsis) [Gr. peripolēsis a going about] the movement of one cell around another; used to refer to the clustering of lymphocytes around macrophages in lymphoid tissue.