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nuclear envelope

American  
[noo-klee-er en-vuh-lohp] / ˈnu kli ər ˈɛn vəˌloʊp /

noun

plural

nuclear envelopes
  1. Cell Biology. nuclear membrane.


nuclear envelope Scientific  
  1. The double-layered membrane enclosing the nucleus of a eukaryotic cell. The nuclear envelope has pores that allow the passage of materials into and out of the nucleus.

  2. Also called nuclear membrane


Other Word Forms

  • nuclear-envelope adjective

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.

During cell division -- mitosis -- the membrane that protects the cell's nucleus, the nuclear envelope, breaks down and cGAS quickly relocates into the nucleus.

From Science Daily • Feb. 28, 2024

Its nuclear envelope prevents unwanted proteins or harmful viruses from entering the nucleus and macromolecules from an uncontrolled escape.

From Science Daily • Jan. 25, 2024

"It looks like only chromosomal DNA is deemed 'good enough' to be encased within a fully formed nuclear envelope, and extra-chromosomal DNA is not," Kroschewski says.

From Science Daily • Oct. 2, 2023

In the case of the nuclear envelope, these gaps close over time or are filled in with specific pore proteins.

From Science Daily • Oct. 2, 2023

The nuclear envelope starts to break into small vesicles, and the Golgi apparatus and endoplasmic reticulum fragment and disperse to the periphery of the cell.

From Textbooks • Apr. 25, 2013