[ ek-soh-sahy-toh-sis ]

  1. the transport of material out of a cell by means of a sac or vesicle that first engulfs the material and then is extruded through an opening in the cell membrane (distinguished from endocytosis).

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Origin of exocytosis

1960–65; exo- + -cyte + -osis; cf. endocytosis

Other words from exocytosis

  • ex·o·cy·tot·ic [ek-soh-sahy-tot-ik], /ˌɛk soʊ saɪˈtɒt ɪk/, adjective

Words Nearby exocytosis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for exocytosis


/ (ˌɛksəʊsaɪˈtəʊsɪs) /

  1. a process by which material is exported from a biological cell

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