catflap.org Online Dictionary Query

  Nucleus \Nu"cle*us\, n.; pl. E. Nucleuses, L. Nuclei. [L., a
     kernel, dim. fr. nux, nucis, nut. Cf. Newel post.]
     [1913 Webster]
     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.
        [1913 Webster]
  
              It must contain within itself a nucleus of truth.
                                                    --I. Taylor.
        [1913 Webster]
  
     2. (Astron.) The body or the head of a comet.
        [1913 Webster]
  
     3. (Bot.)
        (a) An incipient ovule of soft cellular tissue.
        (b) A whole seed, as contained within the seed coats.
            [1913 Webster]
  
     4. (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.
        [1913 Webster +PJC]
  
     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.
           [1913 Webster]
  
     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.
            [1913 Webster]

  Nucleus \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.

  nucleus
       n 1: a part of the cell containing DNA and RNA and responsible
            for growth and reproduction [syn: cell nucleus, karyon]
       2: the positively charged dense center of an atom
       3: a small group of indispensable persons or things; "five
          periodicals make up the core of their publishing program"
          [syn: core, core group]
       4: (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: any histologically identifiable mass of neural cell bodies
          in the brain or spinal cord
       [also: nuclei (pl)]

  nuclei
       See nucleus

  nuclei
     Italian n.
     (plural of it nucleo)
     Latin n.
     (inflection of la nucleus  nom//voc p ; gen s)

  nuclei
     alt.
     (l en nucleuses)
     n.
     (plural of en nucleus)

  nuclei
     Italian n.
     (plural of it nucleo)
     Latin n.
     (inflection of la nucleus  nom//voc p ; gen s)

  nuclei
     Italian n.
     (plural of it nucleo)
     Latin n.
     (inflection of la nucleus  nom//voc p ; gen s)

  nuclei
     Engelska n.
     (böjning en subst nucleus)

  Nuclei /njˈuːklɪi/
  النوى

  nuclei /njˈuːklɪi/
  jádra

  nuclei /njˈuːklɪi/
  Atomkerne 
     Synonym: atomic nuclei
  
   see: atomic nucleus, nucleus
  

  nuclei /njˈuːklɪi/
  Keimzellen 
   see: nucleus
  

  nuclei /njˈuːklɪi/
  Kerne 
   see: nucleus
  

  nuclei /njˈuːklɪi/
  Zellkerne 
     Synonyms: cell nuclei, nucleuses, cytoblasts, endoblasts, karyoblasts, karyons
  
   see: cell nucleus, nucleus, cytoblast, endoblast, karyoblast, karyon, diploid nucleus, amphykarion, macronucleus, micronucleus
  

  nuclei /njˈuːklɪi/
  
  πυρήνες

  
/ˈnukɫiˌaɪ/

  n. nucleus 的复数形;

     n. nucleus的复数形