 ##  [Exocytosis](/exocytosis) 

  ##  [Exocytosis](https://natural.quantumdictionary.io/exocytosis-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

Vesicle‑mediated process in which intracellular membrane compartments fuse with the plasma membrane to deliver membrane components and to release luminal cargo (proteins, neurotransmitters, hormones) into the extracellular space.