nucleus

1 a part of the cell containing DNA and RNA and responsible for growth and reproduction [syn: cell nucleus, karyon]

2 the positively charged dense center of an atom

3 a small group of indispensable persons or things; "five periodicals make up the core of their publishing program" [syn: core, core group]

4 (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail

5 any histologically identifiable mass of neural cell bodies in the brain or spinal cord [also: nuclei (pl)]nuclei See nucleus

English

Alternative forms

• nucleuses

Noun

nuclei

1. Plural of nucleus

Translations

Italian

Noun

nuclei

1. Plural of nucleo

Nucleus may refer to:

In physics

• Atomic nucleus, the collection of protons and neutrons in the center of an atom, also composed of subatomic matter
• Ice nucleus, the center of an ice crystal
• Cloud condensation nuclei, the basis for the development of a cloud droplet

In biology

• Cell nucleus, the control center of a cell, which contains the cell's chromosomal DNA
• Nucleus (neuroanatomy), a central nervous system structure composed mainly of gray matter
• Beekeeping term for a small beehive http://www.dave-cushman.net/bee/unite_nuc.html

In astronomy

• Comet nucleus, the solid core of a comet.
• Galaxy nucleus, the central region of a galaxy.

In phonology

• Syllable nucleus, the central part of a syllable
• Sentence nucleus, the syllable which receives the greatest stress in a word

In computer systems

• Nucleus CMS, an open-source weblog system
• Nucleus RTOS, a brand of operating system

Other

• Nucleus (band), a British jazz-rock band led by Ian Carr
• Nucleus (video game), a downloadable game on the PlayStation Store
• Nucleus Limited, an Australian medical research company, taken over by Pacific Dunlop in 1988.

See also

• lookfrom Nucleus
• Nucleolus
• Nuclear
• Nucleation
• lookfrom Nucleo
• Nucleic acid