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nucleolus
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English Dictionary: Nucleolus by the DICT Development Group
2 results for Nucleolus
From WordNet (r) 3.0 (2006) [wn]:
nucleolus
n
  1. a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis
    Synonym(s): nucleolus, nucleole
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Nucleolus \Nu*cle"o*lus\, n.; pl. {Nucleoli}. [L., a little nut,
      dim. of nucleus.]
      1. A little nucleus.
  
      2. (Biol.) A small rounded body contained in the nucleus of a
            cell or a protozoan.
  
      Note: It was termed by Agassiz the entoblast. In the
               protozoa, where it may be situated on one side of the
               nucleus, it is sometimes called the endoplastule, and
               is supposed to be concerned in the male part of the
               reproductive process. See {Nucleus}.
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