nucleus

英 [ˈnjuːkliəs]

美 [ˈnuːkliəs]

n.  核; 原子核; 细胞核; 核心; 中心

复数：nuclei　

CET4CET6考研TOEFLIELTSGRETEM4TEM8计算机

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。

柯林斯词典

• 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。

英英释义

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

双语例句

• 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。
• Objective To know the ultrastructure and function of synapse in mammal's medulla oblongata megacell reticular nucleus.
  目的探讨哺乳动物延髓巨细胞网状核内突触的超微结构及其功能。
• A nucleus can have only one y-chromosome.
  一个核可以仅有一个y染色体。
• We have a helium nucleus and one electron.
  我们有一个氦核和一个电子。
• 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。
• In this condition, they are sometimes referred to collectively as the chromatin of the nucleus.
  在这种情况下，人们有时笼统地称它们为核染色质。
• The sum of the number of neutrons and protons in an atomic nucleus.
  原子核中中子和质子数之和。
• 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。
• And, it involves a single electron orbiting a positively charged nucleus.
  包含了一个单独的电子轨道，一个带正电荷的核。
• The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.
  两个精核和管核都是从同一个小孢子核有丝分裂产生的。