nucleus

英 ['njuːkliəs] 美 ['nuːkliəs]

• n. 核；核心；细胞核；原子核

双解释义

n. (名词)

1. [C](原子)核

   the central part of an atom, consisting of protons and neutrons

2. [C]中心,核心

   central part, around which other parts are grouped or collected

详尽释义

n. 名词

1. 核
2. 核心
3. 中心
4. 细胞核
5. 原子核
6. 起点
7. 核子
8. 环
9. 【生】细胞核
10. 【物】原子核
11. 【化】有机化合物的原子团
12. 【天】慧核
13. 核心程序
14. 中坚

英英释义

Noun:

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

6. the central structure of the lens that is surrounded by the cortex

例句

用作名词 (n.)

1. A nucleus can have only one Y-chromosome.
   一个核可以仅有一个Y染色体。
2. These council will form the nucleus of a future regime.
   这些委员会将成为一个未来政权的核心。
3. These paintings will form the nucleus of a new collection.
   这些油画将是新收藏品的核心。
4. These 1000 books will form the nucleus of the new school library.
   这一千本书将构成学校新图书馆藏书的基础。
5. The most important part of the cell is the nucleus.
   细胞中最重要的部分是细胞核。
6. The outermost electron is shielded from the nucleus.
   原子核对最外层电子的作用受到屏蔽。

常见句型

用作名词 (n.)

1. The nucleus of an atom consists of neutrons, protons and other particles.
   原子核由中子、质子和其他粒子构成。
2. Many people believe that the family is the nucleus of the community.
   许多人认为家庭是社会的核心。
3. These young people formed the nucleus of the club.
   这些年轻人成了俱乐部的核心。

经典引文

• A very fair collection of modern books..as the nucleus of a library.

  出自： J. H. Bennet

• Those units were eventually to form the nucleus of the new Sudan People's Liberation Army.

  出自：Christian Aid News

• The tight, tough island quarter..the original nucleus of the city.

  出自： Jan Morris

• They will have nucleus crew of two-fifths of their war complement.

  出自：Westminster Gazette

词汇搭配

• active galactic nucleus 活动星系统,活动星系...
• condensation nucleus 凝结核
• nucleus formation (晶)核生成(作用)...
• metabolic nucleus 静止核
• compound nucleus 复核
• fusion nucleus 融合核
• restitution nucleus 再组核,重建核...
• target nucleus 靶核
• earth nucleus 地核
• hypoglossal nucleus 舌下核,舌下神经核...
• cell nucleus 细胞核
• aromatic nucleus 芳香环
• accessory nucleus 副神经核, 副核, ...
• polar nucleus 极核
• daughter nucleus 子核
• resting nucleus 静止核
• magic nucleus 幻核
• residual nucleus 剩余核
• excited nucleus 激发核
• stable nucleus 稳定核

词源解说

• ☆ 直接源自拉丁语的nucleus，意为核心。

近反义词

【近义词】

• center
• core
• heart

【反义词】

• appearance
• exterior
• face