nucleus

56 entries found for nucleus.
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nucleus accessory olivary nucleus amygdala amygdaloid nucleus arcuate nucleus basal ganglion basal nucleus Bechterew's nucleus Bekhterev's nucleus caudate nucleus cochlear nucleus cuneate nucleus Deiters' nucleus dentate nucleus dorsal accessory olivary nucleus Edinger-Westphal nucleus fastigial nucleus habenula hypoglossal nucleus inferior olive inferior vestibular nucleus interpeduncular nucleus lateral geniculate nucleus lateral nucleus lateral reticular nucleus lateral vestibular nucleus lenticular nucleus lentiform nucleus medial accessory olivary nucleus medial vestibular nucleus nucleus accumbens nucleus ambiguus nucleus basalis nucleus basalis of Meynert nucleus cuneatus nucleus dorsalis nucleus gracilis nucleus of origin nucleus pulposus oculomotor nucleus olivary nucleus paraventricular nucleus pontine nucleus preoptic nucleus raphe nucleus red nucleus resting nucleus roof nucleus subthalamic nucleus superior olive superior vestibular nucleus suprachiasmatic nucleus supraoptic nucleus trochlear nucleus ventromedial nucleus vestibular nucleus

Main Entry: nu·cle·us
Pronunciation: n(y)ü-kl-s
Function: noun
Inflected Form(s): plural nu·clei /-kl- /; also nu·cle·us·es
1 : a cellular organelle of eukaryotes that is essential to cell functions (as reproduction and protein synthesis), is composed of nuclear sap and a nucleoprotein-rich network from which chromosomes and nucleoli arise, and is enclosed in a definite membrane
2 : a mass of gray matter or group of nerve cells in the central nervous system
3 : a characteristic and stable complex of atoms or groups in a molecule; especially : RING 2 <the naphthalene nucleus>
4 : the positively charged central portion of an atom that comprises nearly all of the atomic mass and that consists of protons and neutrons except in hydrogen which consists of one proton only
[nucleus illustration]