nucleolus


Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.
Related to nucleolus: Smooth endoplasmic reticulum

nu·cle·o·lus

 (no͞o-klē′ə-ləs, nyo͞o-)
n. pl. nu·cle·o·li (-lī′)
A small body in the nucleus of a cell that contains protein and RNA and is the site for the synthesis of ribosomal RNA and for the formation of ribosomal subunits.

[New Latin, from Latin, diminutive of nucleus, kernel; see nucleus.]

nu·cle′o·lar (-lər) adj.

nucleolus

(ˌnjuːklɪˈəʊləs)
n, pl -li (-laɪ)
(Biology) a small rounded body within a resting nucleus that contains RNA and proteins and is involved in the production of ribosomes. Also called: nucleole
[C19: from Latin, diminutive of nucleus]
ˌnucleˈolar, ˈnucleoˌlate, ˈnucleoˌlated adj

nu•cle•o•lus

(nuˈkli ə ləs, nyu-)

n., pl. -li (-ˌlaɪ)
a small, rounded body within the cell nucleus, functioning in ribosome manufacture.
[1835–45; < Late Latin: small kernel =nucle(us) kernel (see nucleus) + -olus -ole1]
nu•cle′o•lar, adj.

nu·cle·o·lus

(no͞o-klē′ə-ləs)
A usually round structure located in the nucleus of a cell and involved in the formation of ribosomes, the sites of protein synthesis in cells.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nucleolus - a small round body of protein in a cell nucleusnucleolus - a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis
cell nucleus, karyon, nucleus - a part of the cell containing DNA and RNA and responsible for growth and reproduction
cell organ, cell organelle, organelle - a specialized part of a cell; analogous to an organ; "the first organelle to be identified was the nucleus"
Translations

nu·cle·o·lus

n. nucléolo, pequeña estructura esférica en el núcleo celular.
References in periodicals archive ?
Furthermore, according to their cellular characteristics, 11 oocytes substages were distinguished: 1) oogonia (Og), 2) chromatin nucleolus (Cn), 3) early perinucleolus (Pn1), 4) late perinucleolus (Pn2), 5) oil globule (Li), 6) yolk globule (yg), 7) early vitellin globule (Ev1), 8) late vitellin globule (Vo2), 9) postvitelogenic (Pvo), 10) germinal vesicle migration (Gvm), and 11) germinal vesicle breakdown (Gvb) (Fig.
The importance of the nucleolus for the diagnosis of malignancy has been reconsidered after the observation that structural and morphological reorganisation is a consequence of the redistribution of the fibrillar components within the nucleolus.
It was later proposed that a notable morphologic feature of these tumors was the large nucleus with a prominent inclusion-like nucleolus and perinucleolar halo (Figure 2, F).
Moseley said it was already known that the viruses send a particular protein into a key part of a cell's nucleus called the nucleolus, but it wasn't known why it did this.
The SGs in human temporal bones (TBs) resemble fried eggs; they contain one nucleus (mean diameter: 10 [micro]m) that has a nucleolus inside it (mean diameter: 2.5 [micro]m) [30].
Speaking on point of order, Federal Minister for Climate Change Mushahid Ullah Khan said that they are part of parliament and nucleolus of power is judiciary.
ISLAMABAD:The government, expressing annoyance over the removal of former prime minister Nawaz Sharif from his post and limiting accountability only to politicians, advised institutions to work within their limits.Speaking on a point of order, Federal Minister for Climate Change Mushahid Ullah Khan said that they were part of the parliament and the nucleolus of power was the judiciary.
Their results suggested that the N-terminal domain is indispensable for NbFib2 to target the nucleolus and cajal body, p2 binds to all three regions of NbFib2, and they target to the nucleus but fail to target the nucleoli and cajal bodies.
Moreover, the nucleolus has roles in other cell functions, such as cell cycle regulation, stress responses, telomerase activity, and aging, and changes to this structure indicate alterations in the functional state of the cell.
Here, we additionally revealed a link among the focal accumulation of coilin in the nucleolus, decreased coilin levels and HDAC1 depletion.