Nucleus Definition & Meaning | Bay Area Crosswords

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Nucleus

Nucleus Definition And Meaning
What's The Definition Of Nucleus? [n] a part of the cell containing DNA and RNA and responsible for growth and reproduction [n] any histologically identifiable mass of neural cell bodies in the brain or spinal cord [n] a small group of indispensable persons or things; "five periodicals make up the core of their publishing program" [n] the positively charged dense center of an atom [n] (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 Synonyms \| Synonyms for Nucleus: cell nucleus \| core \| core group \| karyon Related Terms \| Find terms related to Nucleus: alpha particle \| Anlage \| antibaryon \| antilepton \| antimeson \| atomic nucleus \| atomic particle \| axiom \| axis \| baryon \| basichromatin \| beta particle \| bud \| center \| center of action \| center of gravity \| centroid \| centrum \| chromatin \| chromatin strands \| core \| dead center \| diameter \| diaphragm \| egg \| electron \| elementary particle \| elixir \| embryo \| epicenter \| equator \| essence \| essential \| flower \| focus \| fundamental \| germ \| germen \| gist \| gravamen \| heart \| heterochromatin \| hub \| hypostasis \| inner essence \| interior \| karyosome \| karyotin \| Kern \| kernel \| lepton \| loins \| macronucleus \| marrow \| mean \| meat \| median \| medulla \| meganucleus \| meson \| metacenter \| micronucleus \| middle \| midmost \| midriff \| midst \| nave \| navel \| neutron \| NMR \| nub \| nuclear force \| nuclear magnetic resonance \| nuclear particle \| nuclear resonance \| nucleolus \| nucleon \| nucleosynthesis \| nuts and bolts \| omphalos \| ovum \| photon \| pith \| pivot \| plasmosome \| postulate \| principle \| proton \| quid \| quiddity \| quintessence \| rudiment \| sap \| seed \| soul \| spark \| spermatozoon \| spirit \| storm center \| strangeness \| strong interaction \| stuff \| substance \| the nitty-gritty \| thick \| thick of things \| triton \| umbilicus \| valence electron \| waist \| waistline \| zone See Also \| achromatin \| atom \| cadre \| cell \| cell organ \| center \| centre \| chromatin \| chromosome \| comet \| karyoplasm \| midpoint \| neural structure \| nucleole \| nucleolus \| nucleon \| nucleoplasm \| organelle \| pronucleus \| set Nucleus In Webster's Dictionary \Nu"cle*us\, n.; pl. E. {Nucleuses}, L. {Nuclei}. [L., a kernel, dim. fr. nux, nucis, nut. Cf. {Newel} post.] 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. It must contain within itself a nucleus of truth. --I. Taylor. 2. (Astron.) The body or the head of a comet. 3. (Bot.) (a) An incipient ovule of soft cellular tissue. (b) A whole seed, as contained within the seed coats. 4. (Biol.) 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}. Note: The nucleus is sometimes termed the endoplast or endoblast, and in the protozoa is supposed to be concerned in the female part of the reproductive process. See {Karyokinesis}. 5. (Zo["o]l.) (a) The tip, or earliest part, of a univalve or bivalve shell. (b) The central part around which additional growths are added, as of an operculum. (c) A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks.

Nucleus Definition And Meaning

What's The Definition Of Nucleus?

[n] a part of the cell containing DNA and RNA and responsible for growth and reproduction
[n] any histologically identifiable mass of neural cell bodies in the brain or spinal cord
[n] a small group of indispensable persons or things; "five periodicals make up the core of their publishing program"
[n] the positively charged dense center of an atom
[n] (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

Synonyms | Synonyms for Nucleus: cell nucleus | core | core group | karyon

Nucleus In Webster's Dictionary

\Nu"cle*us\, n.; pl. E. {Nucleuses}, L. {Nuclei}. [L., a
kernel, dim. fr. nux, nucis, nut. Cf. {Newel} post.]
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.

         It must contain within itself a nucleus of truth.
                                               --I. Taylor.

2. (Astron.) The body or the head of a comet.

3. (Bot.)
   (a) An incipient ovule of soft cellular tissue.
   (b) A whole seed, as contained within the seed coats.

4. (Biol.) 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}.



Note: The nucleus is sometimes termed the endoplast or
      endoblast, and in the protozoa is supposed to be
      concerned in the female part of the reproductive
      process. See {Karyokinesis}.

5. (Zo["o]l.)
   (a) The tip, or earliest part, of a univalve or bivalve
       shell.
   (b) The central part around which additional growths are
       added, as of an operculum.
   (c) A visceral mass, containing the stomach and other
       organs, in Tunicata and some mollusks.

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