n.[C]

1. 【核】（原子）核
2. 【生】細胞核
   It is possible to transplant chromosomes in cell nuclei.

   移植細胞核內的染色體是可能的。

3. 核，核心，中心；起點
   These councils would form the nucleus of a future regime.

   這些委員會將成為一個未來政權的核心。

4. 【天】（彗）核
5. 【化】環，（晶）核

n.

1. the central and most important part of an object or group.
2. Physics  the positively charged central core of an atom, containing nearly all its mass.
3. Biology  a structure present in most cells, containing the genetic material.
4. a discrete mass of grey matter in the central nervous system.