Lexic.us

Definition of Nucleolus

1. Noun. A small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis.

Definition of Nucleolus

1. n. A little nucleus.

Definition of Nucleolus

1. Noun. (cytology) A conspicuous, rounded body within the nucleus of a cell. ¹

¹ Source: wiktionary.com

Definition of Nucleolus

1. a nucleole [n -LI] - See also: nucleole

Medical Definition of Nucleolus

1. A small dense body (sub organelle) within the nucleus of eukaryotic cells, visible by phase contrast and interference microscopy in live cells throughout interphase. Contains RNA and protein and is the site of synthesis of ribosomal RNA. The nucleolus surrounds a region of one or more chromosomes (the nucleolar organiser) in which are repeated copies of the DNA coding for ribosomal RNA. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Nucleolus

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