What does nucleus mean?

Definitions for nucleus
ˈnu kli əs, ˈnyu-; -kliˌaɪnu·cle·us

Here are all the possible meanings and translations of the word nucleus.

Princeton's WordNet

  1. nucleus, cell nucleus, karyonnoun

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

  2. nucleusnoun

    the positively charged dense center of an atom

  3. core, nucleus, core groupnoun

    a small group of indispensable persons or things

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

  4. nucleusnoun

    (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

  5. nucleusnoun

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

  6. lens nucleus, nucleusnoun

    the central structure of the lens that is surrounded by the cortex

GCIDE

  1. Nucleusnoun

    (Biol.) 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.

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

Wiktionary

  1. nucleusnoun

    The core, central part (of something), round which others are assembled.

    Etymology: From nucleus, a diminutive of nux.

  2. nucleusnoun

    An initial part or version that will receive additions.

    This collection will form the nucleus of a new library.

    Etymology: From nucleus, a diminutive of nux.

  3. nucleusnoun

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

    Etymology: From nucleus, a diminutive of nux.

  4. nucleusnoun

    A large organelle found in cells which contains genetic material.

    Etymology: From nucleus, a diminutive of nux.

  5. nucleusnoun

    A ganglion, cluster of many neuronal bodies where synapsing occurs.

    Etymology: From nucleus, a diminutive of nux.

  6. nucleusnoun

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

    Etymology: From nucleus, a diminutive of nux.

Webster Dictionary

  1. Nucleusnoun

    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

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  2. Nucleusnoun

    the body or the head of a comet

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  3. Nucleusnoun

    an incipient ovule of soft cellular tissue

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  4. Nucleusnoun

    a whole seed, as contained within the seed coats

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  5. Nucleusnoun

    a body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. 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

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  6. Nucleusnoun

    the tip, or earliest part, of a univalve or bivalve shell

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  7. Nucleusnoun

    the central part around which additional growths are added, as of an operculum

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

  8. Nucleusnoun

    a visceral mass, containing the stomach and other organs, in Tunicata and some mollusks

    Etymology: [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]

Chambers 20th Century Dictionary

  1. Nucleus

    nū′klē-us, n. the central mass round which matter gathers: (astron.) the head of a comet:—pl. Nuclei (nū′klē-ī).adjs. Nū′clēal, Nū′clēar, pertaining to a nucleus.—v.t. Nū′clēāte, to gather into or around a nucleus.—adjs. Nū′clēate, -d, having a nucleus; Nū′clēiform.—ns. Nū′clēin, a colourless amorphous proteid, a constituent of cell-nuclei; Nū′cleobranch, one of an order of molluscs which have the gills packed in the shell along with the heart:—pl. Nucleobranchiă′ta; Nū′clēōle, a little nucleus: a nucleus within a nucleus—also Nuclē′olus:—pl. Nuclē′oli. [L.,—nux, nucis, a nut.]

Editors Contribution

  1. nucleus

    A type of energy.

    The nucleus of the farm was working efficiently therefore it all functioned amazing.

    Submitted by MaryC on January 1, 2020  

Entomology

  1. Nucleus

    a well-defined, differentiated, round or oval body imbedded in the cell contents.

How to pronounce nucleus?

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Numerology

  1. Chaldean Numerology

    The numerical value of nucleus in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of nucleus in Pythagorean Numerology is: 5

Examples of nucleus in a Sentence

  1. Joss Bland-Hawthorn:

    This can only be done radiatively from the monster at the galaxys nucleus.

  2. Gary Cohn:

    We had an interesting nucleus of people when I was in Trump White House -- the initial team. We were not bashful. It was a group that was willing to tell the President what he needed to know, whether he wanted to hear it or not.

  3. Norman Douglas:

    There is in us a lyric germ or nucleus which deserves respect; it bids a man to ponder or create; and in this dim corner of himself he can take refuge and find consolations which the society of his fellow creatures does not provide.

  4. Robert Collier:

    Plant the seed of desire in your mind and it forms a nucleus with power to attract to itself everything needed for its fulfillment.

  5. Viola Davis:

    [ Actors ] are in the business of creating human beings, of finding out what makes you tick -- the psychological pathology, pathology is the study of tumors. Acting is a study of' What is your tumor ? What is that nucleus ?' And in order to do that, I felt like if I took that wig off... what it's going to force the writer to do is write the woman.

Images & Illustrations of nucleus

  1. nucleusnucleusnucleusnucleusnucleus

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Translations for nucleus

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    the part of the alimentary canal between the stomach and the anus
    • A. accident
    • B. bowel
    • C. ransom
    • D. decline

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