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Noun: nucleolus (nucleoli)  n(y)oo'klee-u-lus [N. Amer], ,nyoo-klee'ow-lus [Brit]
  1. A small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis
    - nucleole

Derived forms: nucleoli

Type of: cell organ, cell organelle, organelle

Part of: cell nucleus, karyon, nucleus

Encyclopedia: Nucleolus