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endocytosis

American  
[en-doh-sahy-toh-sis] / ˌɛn doʊ saɪˈtoʊ sɪs /

noun

Physiology.
  1. the transport of solid matter or liquid into a cell by means of a coated vacuole or vesicle (distinguished from exocytosis).


endocytosis British  
/ ˌɛndəʊsaɪˈtəʊsɪs /

noun

  1. the process by which a living cell takes up molecules bound to its surface

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of endocytosis

1960–65; endo- + -cyte + -osis, perhaps on the model of phagocytosis


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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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In the new study, Zhou and colleagues used super-resolution imaging on neurons grown in the laboratory and found that the MPS behaves more like a cellular traffic controller, regulating all major forms of endocytosis.

From Science Daily ● Jul. 15, 2026

Once Migrions reach a new cell, they enter through endocytosis without relying on specific cell surface receptors.

From Science Daily ● Jan. 5, 2026

In both species, the researchers identified the presence of Dynamin1xA, a protein required for ultrafast synaptic membrane recycling, at the locations where endocytosis is believed to take place.

From Science Daily ● Dec. 1, 2025

Antigens enter cells via endocytosis and combine with MHC class II molecules in vesicles.

From Textbooks ● Jan. 1, 2015

Plant and animal viruses can enter their cells through endocytosis, in which the cell membrane surrounds and engulfs the entire virus.

From Textbooks ● Apr. 25, 2013

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