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Definition of Nucleus


  1. 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. The body or the head of a comet.
  3. An incipient ovule of soft cellular tissue.
  4. A whole seed, as contained within the seed coats.
  5. 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. The tip, or earliest part, of a univalve or bivalve shell.
  7. The central part around which additional growths are added, as of an operculum.
  8. A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks.

Nucleus Quotations

Will Durant Quote
The family is the nucleus of civilization.
Will Durant

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

The most terrifying thing I can think of is being alone - and I mean utterly alone, like no one else in the world alone - at night. That's the nucleus of the first story in my collection and it's also where the title came from for the book.
Paul Kane

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.
Norman Douglas

I'm the glue that keeps it all together. I'm the nucleus of an entertainment family. My day-to-day is making decisions to keep life above water.
Jada Pinkett Smith
More "Nucleus" Quotations

Nucleus Translations

nucleus in Afrikaans is pit
nucleus in Dutch is pit, kern
nucleus in Finnish is ydin
nucleus in French is noyau cellulaire, noyau
nucleus in German is Kern, Zellkern
nucleus in Italian is nucleare, nucleo cellulare

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