First Known Use: 1845
Dictionary
nucleolus
noun nu·cle·o·lus \nü-ˈklē-ə-ləs, nyü-\
plural nu·cle·o·li\-ˌlī\
Definition of NUCLEOLUS
: a spherical body of the nucleus of most eukaryotes that becomes enlarged during protein synthesis, is associated with a nucleolus organizer, and contains the DNA templates for ribosomal RNA — see cell illustration
— nu·cle·o·lar \-lər\ adjective
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Origin of NUCLEOLUS
New Latin, from Latin, diminutive of nucleus
Medical Dictionary
nucleolus
noun nu·cle·o·lus \n(y)ü-ˈklē-ə-ləs\
plural nu·cle·o·li \-ˌlī\
Medical Definition of NUCLEOLUS
: a spherical body of the nucleus of most eukaryotes that becomes enlarged during protein synthesis, is associated with a nucleolus organizer, and contains the DNA templates for ribosomal RNA—called also plasmosome
Illustration of NUCLEOLUS
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