Cell Component
nuclear envelope
Subclass of:
Cell Membrane Structures; Cell Nucleus Structures; Intracellular Membranes
Definitions related to nuclear envelope:
  • (nuclear membrane) Membrane system of the cell nucleus that surrounds the nucleoplasm.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • (nuclear membrane) The double-layer membrane structure enclosing the nucleus in eukaryotic cells. It separates the DNA of the cell from the cytosol. For exchange of material, for example, proteins and mRNA, it is punctured with numerous nuclear pores.
    NCI
    U.S. National Cancer Institute, 2021
  • The membrane system of the CELL NUCLEUS that surrounds the nucleoplasm. It consists of two concentric membranes separated by the perinuclear space. The structures of the envelope where it opens to the cytoplasm are called the nuclear pores (NUCLEAR PORE).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.