nucleus
英英释意
- 1. a part of the cell containing DNA and RNA and responsible for growth and reproduction
- 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"
- 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