WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

Google
 

nucleus
 
Noun nucleus has 5 senses
  1. nucleus, cell nucleus, karyon - a part of the cell containing DNA and RNA and responsible for growth and reproduction
    --1 is a kind of organelle, cell organ
    --1 is a part of cell
    --1 has parts:
     nucleolus, nucleole; chromatin, chromatin granule; achromatin; linin; chromosome
     --1 has substances: nucleoplasm, karyoplasm
    --1 has particulars: pronucleus; subthalamic nucleus
    Derived form: verb nucleate1
  2. nucleus - the positively charged dense center of an atom
    --2 is a kind of     center, centre, midpoint
    --2 is a part of atom
    --2 has part: nucleon
  3. core, nucleus, core group - a small group of indispensable persons or things; "five periodicals make up the core of their publishing program"
    --3 is a kind of set
    --3 has particulars: cadre
  4. nucleus - (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
    --4 is a kind of     center, centre, midpoint
    --4 is a part of comet
  5. nucleus - any histologically identifiable mass of neural cell bodies in the brain or spinal cord
    --5 is a kind of     neural structure
    --5 has particulars: dentate nucleus
nucleophilic reaction nucleoplasm nucleoprotein nucleoside nucleoside reverse transcriptase inhibitor nucleosynthesis nucleotide nucleui membrane nucleus nucleus nucleus niger nucleusresearch nuclious nuclues nuculear nucules nuda

Sponsored (shop thru our affiliate link to help maintain this site):

WordNet-Online
Home | Free dictionary software | Copyright notice | Contact us | WordNet dictionary | Automotive thesaurus