Definitions for nucleus
ˈnu kli əs, ˈnyu-; -kliˌaɪnu·cle·us
Here are all the possible meanings and translations of the word nucleus.
nucleus, cell nucleus, karyonnoun
a part of the cell containing DNA and RNA and responsible for growth and reproduction
the positively charged dense center of an atom
core, nucleus, core groupnoun
a small group of indispensable persons or things
"five periodicals make up the core of their publishing program"
(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
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
lens nucleus, nucleusnoun
the central structure of the lens that is surrounded by the cortex
(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.
The core, central part (of something), round which others are assembled.
An initial part or version that will receive additions.
This collection will form the nucleus of a new library.
The massive, positively charged central part of an atom, made up of protons and neutrons.
A large organelle found in cells which contains genetic material.
A ganglion, cluster of many neuronal bodies where synapsing occurs.
The central part of a syllable, most commonly a vowel.
Etymology: From nucleus, a diminutive of nux.
Samuel Johnson's Dictionary
A kernel; any thing about which matter is gathered or conglobated.
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.
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
the body or the head of a comet
an incipient ovule of soft cellular tissue
a whole seed, as contained within the seed coats
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
the tip, or earliest part, of a univalve or bivalve shell
the central part around which additional growths are added, as of an operculum
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
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.]
A type of energy.
The nucleus of the farm was working efficiently therefore it all functioned amazing.
Submitted by MaryC on January 1, 2020
a well-defined, differentiated, round or oval body imbedded in the cell contents.
The numerical value of nucleus in Chaldean Numerology is: 4
The numerical value of nucleus in Pythagorean Numerology is: 5
We will participate in the formation of the nucleus of the Libyan army and security forces in Tunisia. This is our duty and we will help Libya to get it done.
We have a group of young players here in Minnesota, a nucleus of young guys that were really coming into their own in a lot of ways, i think some of those guys were ready to take the next step in their career offensively, and a couple of those guys were doing that at the same time. We also complemented them with some quality, veteran players.
The family is the nucleus of civilization.
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.
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.
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Translations for nucleus
From our Multilingual Translation Dictionary
- nucliCatalan, Valencian
- jádro, středCzech
- niwclews, cnewyllynWelsh
- Nukleus, Zellkern, AtomkernGerman
- nukleo, kernoEsperanto
- ydin, tumaFinnish
- niùclas, eitean, cridheScottish Gaelic
- ליבה, גרעיןHebrew
- frumeindarkjarni, atómkjarni, frumukjarni, kjarniIcelandic
- 細胞核, 核, 原子核Japanese
- nukleus, terasMalay
- nucleus, celkern, kiem, kern, atoomkernDutch
- hinááh bijéí bijéíNavajo, Navaho
- jądro, rdzeńPolish
- gânglio, núcleoPortuguese
- miez, nucleuRomanian
- центр, ядроRussian
- cellkärna, atomkärnaSwedish
- hücre çekirdeği, çekirdekTurkish
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"nucleus." Definitions.net. STANDS4 LLC, 2022. Web. 6 Oct. 2022. <https://www.definitions.net/definition/nucleus>.