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

Princeton's WordNetRate this definition:2.3 / 3 votes

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

GCIDERate this definition:3.0 / 2 votes

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.

WiktionaryRate this definition:5.0 / 1 vote

1. nucleusnoun

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

2. nucleusnoun

   An initial part or version that will receive additions.

   This collection will form the nucleus of a new library.

3. nucleusnoun

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

4. nucleusnoun

   A large organelle found in cells which contains genetic material.

5. nucleusnoun

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

6. nucleusnoun

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

7. Etymology: From nucleus, a diminutive of nux.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. NUCLEUSnoun

   A kernel; any thing about which matter is gathered or conglobated.

   Etymology: Latin.

   The crusts are each in all parts nearly of the same thickness, their figure suited to the nucleus, and the outer surface of the stone exactly of the same form with that of the nucleus. John Woodward, on Fossils.

ChatGPTRate this definition:0.0 / 0 votes

1. nucleus

   The nucleus is generally referred to in two main contexts: 1) In atomic structure, the nucleus is the central part of an atom, containing protons and neutrons, around which electrons orbit. It is usually dense, positively charged, and holds the majority of an atom's mass. 2) In cellular biology, the nucleus is a membrane-bound structure found in eukaryotic cells that contains the cell's genetic material (DNA). It controls cell growth, metabolism, reproduction, and protein synthesis.

Webster DictionaryRate this definition:0.0 / 0 votes

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

2. Nucleusnoun

   the body or the head of a comet

3. Nucleusnoun

   an incipient ovule of soft cellular tissue

4. Nucleusnoun

   a whole seed, as contained within the seed coats

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

6. Nucleusnoun

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

7. Nucleusnoun

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

8. Nucleusnoun

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

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

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

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 ContributionRate this definition:0.0 / 0 votes

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  

EntomologyRate this definition:0.0 / 0 votes

1. Nucleus

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

Matched Categories

1. • Atom
   • Center
   • Comet
   • Neural Structure
   • Set
   • Structure

Anagrams for Nucleus »

1. nucules

How to pronounce Nucleus?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Nucleus in sign language?

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. Allen Lawrence:

   I saw the double nucleus about seven years ago, it had never been observed or nobody had ever done anything with it before.

2. 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.

3. Craig Corcoran:

   We’re a powerful nucleus, all of us together. There is nothing we should be afraid of, all of these countries will respond together and they will get theirs, without question.

4. William James Durant:

   The family is the nucleus of civilization.

5. Robert Collier:

   First the stalk -- then the roots. First the need -- then the means to satisfy that need. First the nucleus -- then the elements needed for its growth.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Nucleus
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=Nucleus
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Nucleus
4. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=Nucleus
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Nucleus
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Nucleus
8. ^ Entomology
   https://www.gutenberg.org/files/22748/22748-h/22748-h.htm#:~:text=Nucleus