释义 |
nu·cle·o·lus \n(y)üˈklēələs\ noun (plural nucleo·li \-ēəˌlī\) Etymology: New Latin, from Latin, small kernel, diminutive of nucleus kernel — more at nucleus 1. : an organized body of predominantly protein structure that is typical of the metabolic nucleus, is variously regarded as a center of synthetic activity or as a storage organelle, and is usually absent during mitosis being formed anew after each division in contact with the nucleolus organizer of the SAT-chromosome : plasmosome — see cell illustration 2. : any differentiated nuclear body other than a chromosome (as an endosome, karyosome, or nucleocentrosome) |