en·​do·​some | \ˈen-də-ˌsōm \

Definition of endosome 

: a vesicle formed by the invagination and pinching off of the cell membrane during endocytosis

Examples of endosome in a Sentence

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Under the stimulus of pain, NK1 receptors actually migrate from the surface of neurons into internal compartments called endosomes, the study found. Bradley J. Fikes, sandiegouniontribune.com, "Blocking chronic pain that's currently out of drugs' reach," 31 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'endosome.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of endosome

1887, in the meaning defined above

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The first known use of endosome was in 1887

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en·​do·​some | \ˈen-də-ˌsōm \

Medical Definition of endosome 

1 : a conspicuous body other than a chromatin granule that occurs within the nuclear membrane of a vesicular protozoan nucleus and is either a karyosome or a nucleolus

2 : a vesicle formed by the invagination and pinching off of the cell membrane during endocytosis

More from Merriam-Webster on endosome

Britannica.com: Encyclopedia article about endosome

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the figure or shape of a crescent moon

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