Tra từ nucleus - Từ điển WordNet v3.1

noun

1. a part of the cell containing DNA and RNA and responsible for growth and reproduction (Freq. 10)
• Syn:
cell nucleus, karyon
• Derivationally related forms:
nucleate
• Hypernyms:
organelle, cell organelle, cell organ
• Hyponyms:
pronucleus, subthalamic nucleus
• Part Holonyms:
cell
• Substance Meronyms:
nucleoplasm, karyoplasm
• Part Meronyms:
nucleolus, nucleole, chromatin, chromatin granule, achromatin,
linin, chromosome
2. the positively charged dense center of an atom (Freq. 3)
• Hypernyms:
center, centre, midpoint
• Part Holonyms:
atom
• Part Meronyms:
nucleon
3. a small group of indispensable persons or things (Freq. 3)
- five periodicals make up the core of their publishing program
• Syn:
core, core group
• Hypernyms:
set
• Hyponyms:
cadre
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
• Topics:
astronomy, uranology
• Hypernyms:
center, centre, midpoint
• Part Holonyms:
comet
5. any histologically identifiable mass of neural cell bodies in the brain or spinal cord
• Hypernyms:
neural structure
• Hyponyms:
dentate nucleus
6. the central structure of the lens that is surrounded by the cortex
• Syn:
lens nucleus
• Hypernyms:
structure, anatomical structure, complex body part, bodily structure, body structure