音标：['nju:kliәs] ；柯林斯词典等级：1 级；

n. 核心, 核子, 原子核, 起点
[计] 核心程序

n. a part of the cell containing DNA and RNA and responsible for growth and reproduction
n. the positively charged dense center of an atom
n. (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
n. any histologically identifiable mass of neural cell bodies in the brain or spinal cord

词型变化：名词复数形式 : nuclei
考试类型：[四级/六级/考研/托福/IELTS/GRE]

词性分布：

名词100%

nucleus的用法和样例：

例句

用作名词(n.)

A nucleus can have only one Y-chromosome.一个核可以仅有一个Y染色体。
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。
These paintings will form the nucleus of a new collection.这些油画将是新收藏品的核心。
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。
The most important part of the cell is the nucleus.细胞中最重要的部分是细胞核。
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.)

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。
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。
These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。

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

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

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