nucleus

英 [ˈnjuːkliəs]

美 [ˈnuːkliəs]

n. 核; 原子核; 细胞核; 核心; 中心

复数：nuclei　

Collins.1 / BNC.5854 / COCA.6944

牛津词典

noun

核；原子核
the part of an atom that contains most of its mass and that carries a positive electric charge
细胞核
the central part of some cells, containing the genetic material
核心；中心
the central part of sth around which other parts are located or collected
1. These paintings will form the nucleus of a new collection.
  这些画将构成新的收藏系列的基础。

N-COUNT (原子)核
Thenucleusof an atom or cell is the central part of it.
1. Neutrons and protons are bound together in the nucleus of an atom.
  在原子核里，中子和质子是结合在一起的。
N-COUNT (组织的)核心，中心
The nucleus ofa group of people or things is the small number of members which form the most important part of the group.
1. The Civic Movement could be the nucleus of a centrist party of the future.
  公民运动的成员可能会成为未来中间派政党的核心。

noun

the central structure of the lens that is surrounded by the cortex
Synonym:lens nucleus
a part of the cell containing DNA and RNA and responsible for growth and reproduction
Synonym:cell nucleuskaryon
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
a small group of indispensable persons or things
1. five periodicals make up the core of their publishing program
Synonym:corecore group
the positively charged dense center of an atom
(astronomy) the center of the head of a comet

This is the lithium nucleus plus electron.
这是锂原子核加上一个电子。
The other male gamete fuses with the secondary nucleus, forming the primary endosperm nucleus.
另一个雄配子和次生核结合形成初生胚乳核。
There is a unity of the two opposites, the nucleus and the electrons.
有原子核和电子两个对立面的统一。
A pair of nucleus gene and cytoplasm gene take common effects on A2 – CMS.
A2型不育性是由一对细胞核基因和细胞质基因共同作用。
The electron's high probability zone formed spiral standing waves around the carbon atom's nucleus.
电子的高概率区域形成了碳原子核周围螺旋驻波。
The nucleus and cytoplasm of the trophozoite was amaranth and blue respectively.
滋养体有紫红色的细胞核和蓝色的细胞质。
In this process the nucleus breaks up into two intermediate-sized nuclei.
在这种过程中，那个原子核分裂成两个中等大小的核。
Objective To study the effect of hypertonic stimulation on the expression of phosphotyrosine in supraoptic nucleus of rat.
目的研究高渗刺激对大鼠视上核酪氨酸蛋白磷酸化的影响。
A nucleus can have only one y-chromosome.
一个核可以仅有一个y染色体。
The nucleus of light cells were larger than that of dark cells.
亮细胞和移行细胞的细胞核明显大于暗细胞。