Definitions for Nucleusˈnu kli əs, ˈnyu-; -kliˌaɪ
This page provides all possible meanings and translations of the word Nucleus
Random House Webster's College Dictionary
nu•cle•usˈnu kli əs, ˈnyu-; -kliˌaɪ(n.)(pl.)-cle•i; -cle•us•es.
a central part about which other parts are grouped or gathered; core.
a specialized, usu. spherical mass of protoplasm encased in a double membrane and found in eukaryotic cells, directing their growth, metabolism, and reproduction, and containing most of the genetic material.
Category: Biology, Cell Biology
the positively charged mass within an atom, composed of neutrons and protons and possessing most of the mass but occupying only a small fraction of the volume of the atom.
a mass of nerve cells in the brain or spinal cord in which nerve fibers form connections.
a fundamental arrangement of atoms, as the benzene ring, that may occur in many compounds by substitution of atoms without a change in structure.
the condensed portion of the head of a comet.
the central, most prominent segment in a syllable, consisting of a vowel or vowellike consonant, as the a-sound in cat or the l-sound in the most prominent syllable in an utterance or stress group; tonic syllable.
Origin of nucleus:
1695–1705; < L nuc(u)leus kernel =nuc- (s. of nux ) nut +-uleus dim. suffix
nucleus, cell nucleus, karyon(noun)
a part of the cell containing DNA and RNA and responsible for growth and reproduction
the positively charged dense center of an atom
core, nucleus, core group(noun)
a small group of indispensable persons or things
"five periodicals make up the core of their publishing program"
(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
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
lens nucleus, nucleus(noun)
the central structure of the lens that is surrounded by the cortex
The core, central part (of something), round which others are assembled.
An initial part or version that will receive additions.
This collection will form the nucleus of a new library.
The massive, positively charged central part of an atom, made up of protons and neutrons.
A large organelle found in cells which contains genetic material.
A ganglion, cluster of many neuronal bodies where synapsing occurs.
The central part of a syllable, most commonly a vowel.
Origin: From nucleus, a diminutive of nux.
a kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively
the body or the head of a comet
an incipient ovule of soft cellular tissue
a whole seed, as contained within the seed coats
a body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division
the tip, or earliest part, of a univalve or bivalve shell
the central part around which additional growths are added, as of an operculum
a visceral mass, containing the stomach and other organs, in Tunicata and some mollusks
Translations for Nucleus
Kernerman English Multilingual Dictionary
the central part of an atom.
- نُواة الذَّرَّهArabic
- núcleoPortuguese (BR)
- der KernGerman
- kerne; nukleusDanish
- πυρήνας ατόμουGreek
- هسته مرکزىFarsi
- inti atomIndonesian
- هسته مرکزىPersian
- هسته يىPashto
- atomçekirdeği, nükleonTurkish
- 原子核Chinese (Trad.)
- ايٹم کا مرکزي حصہUrdu
- 原子核Chinese (Simp.)
Get even more translations for Nucleus »
Find a translation for the Nucleus definition in other languages:
Select another language: