nuclear envelope
Americannoun
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nuclear envelopes
plural
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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.
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Also called nuclear membrane
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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They observed that progerin, which first appears near the nuclear envelope, can move into the cell's cytoplasm through a process called nuclear envelope budding.
From Science Daily ● Nov. 7, 2025
However, most fungi use a different form of cell division -- called 'closed' mitosis -- in which the nuclear envelope remains intact throughout the division process.
From Science Daily ● May 22, 2024
Most animal cells undergo 'open' mitosis, in which the nuclear envelope -- the two-layered membrane separating the nucleus from the rest of the cell -- breaks down when cell division begins.
From Science Daily ● May 22, 2024
When DNA inside the nucleus of a human cell is damaged, a specific network of microtubule filaments forms in the cytoplasm around the nucleus and pushes on the nuclear envelope.
From Science Daily ● Apr. 17, 2024
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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
