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nucleolus |
2 definitions found 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}. From WordNet r 1.6 [wn]: nucleolus n : a small round body of protein in a cell nucleus; nucleoli contain RNA and are involved in protein synthesis [syn: {nucleole}]
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