exocytosis

exocytosis /exo·cy·to·sis/ (-si-to´sis)

1. the discharge from a cell of particles that are too large to diffuse through the wall; the opposite of endocytosis.

2. the aggregation of migrating leukocytes in the epidermis as part of the inflammatory response.

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ex·o·cy·to·sis (ks-s-tss)

n. pl. ex·o·cy·to·ses (-sz)

1. The appearance of migrating inflammatory cells in the epidermis.

2. A process of cellular secretion or excretion in which substances contained in vesicles are discharged from the cell by fusion of the vesicular membrane with the outer cell membrane. Also called emiocytosis.

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exocytosis

(ek´sōsītō´sis),
n the active transport of material from a vesicle out into the extracellular environment.

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exocytosis

1. the discharge from a cell of particles that are too large to diffuse through the plasma membrane; the opposite of endocytosis.

2. the aggregation of migrating leukocytes in the epidermis as part of the inflammatory response.