Nucleus vs. Nuclei - What's the difference?

Wiktionary

  • Nucleus (noun)

    The core, central part of something, around which other elements are assembled.

  • Nucleus (noun)

    An initial part or version that will receive additions.

    "This collection will form the nucleus of a new library."

  • Nucleus (noun)

    The massive, positively charged central part of an atom, made up of protons and neutrons.

  • Nucleus (noun)

    A large membrane-enclosed organelle found in eukaryotic cells which contains genetic material.

  • Nucleus (noun)

    A synapsing occurs.

  • Nucleus (noun)

    The central part of a syllable, most commonly a vowel.

  • Nuclei (noun)

    plural of nucleus

Webster Dictionary

  • Nucleus (noun)

    A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; - used both literally and figuratively.

  • Nucleus (noun)

    The body or the head of a comet.

  • Nucleus (noun)

    An incipient ovule of soft cellular tissue.

  • Nucleus (noun)

    A body, usually spheroidal, in a eukaryotic cell, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents, which contains the chromosomal genetic material, including the chromosomal DNA. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division.

  • Nucleus (noun)

    The tip, or earliest part, of a univalve or bivalve shell.

Princeton's WordNet

  • Nucleus (noun)

    a part of the cell containing DNA and RNA and responsible for growth and reproduction

  • Nucleus (noun)

    the positively charged dense center of an atom

  • Nucleus (noun)

    a small group of indispensable persons or things;

    "five periodicals make up the core of their publishing program"

  • Nucleus (noun)

    (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail

  • Nucleus (noun)

    any histologically identifiable mass of neural cell bodies in the brain or spinal cord

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