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

• 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 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。
• 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 Verve operating system consists of a nucleus, a kernel and one or more applications.
  Verve操作系统由内核（nucleus）、核心（kernel）和一个或多个应用程序组成。
• 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。
• Results EGR1 mRNA and EGR1 protein positive signals were brown in colour and located in the cytoplasm and nucleus.
  结果egr-1mrna和egr-1蛋白阳性信号呈棕褐色，位于细胞浆和细胞核。
• Objective To observe the expression of MMP-1and TIMP-1 in nucleus pulposus cells of intervertebral disc degeneration.
  目的测定MMP-1及TIMP-1在人退变椎间盘髓核中的表达，探讨其在人椎间盘退变发生、发展中的作用。
• The repulsive force within the nucleus is enormous.
  核子内部的斥力是巨大的。
• 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。
• A neutron is simply a neutral particle in the nucleus of an atom.
  中子就是原子核里不带电的粒子。