nucleolus Hear it!

nucleolus Definition

nu·cleo·lus (no̵̅o̅ klē′ə ləs, nyo̵̅o̅-)

noun pl. -·li′-nyo̵̅o̅-

a conspicuous, usually spherical, dense body in the nucleus of most cells, consisting of protein and RNA: ribosomes are produced here

Etymology: ModL < LL, dim. of L nucleus

nucleolus Related Forms
nu·cle′o·lar adjective
nucleolus Usage Examples

Converse of object

  • call: One or more darkly staining spherical bodies called the nucleoli are found inside the nucleus.
  • isolate: The Arabidopsis Nucleolar Protein Database provides information on 217 proteins identified in a proteomic analysis of nucleoli isolated from Arabidopsis cell culture.
  • target: The ORF3 protein also enters the cell nucleus, specifically targeting the nucleolus.

Adjective modifier

  • prominent: The cells are larger than in CLL, with a prominent central nucleolus.
  • single: This latter feature differentiates Trichamoeba from the otherwise similar Saccamoeba which has a nucleus with a single large nucleolus.
  • central: The cells are larger than in CLL, with a prominent central nucleolus.