atom

英 [ˈætəm]

美 [ˈætəm]

n.  原子

复数：atoms　

高考CET4CET6考研TOEFLTEM4TEM8计算机

Oxford 3000 / Collins.2 / BNC.4241 / COCA.5184

牛津词典

noun

• 原子
  the smallest part of a chemical element that can take part in a chemical reaction
  1. the splitting of the atom
     原子的分裂
  2. Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
     两个氢原子和一个氧原子结合组成一个水分子。

柯林斯词典

• N-COUNT 原子
  Anatomis the smallest amount of a substance that can take part in a chemical reaction.
  1. A methane molecule is composed of one carbon atom attached to four hydrogens.
     甲烷分子由1个碳原子与4个氢原子构成。

英英释义

noun

• (nontechnical usage) a tiny piece of anything
  Synonym:moleculeparticlecorpusclemotespeck
• (physics and chemistry) the smallest component of an element having the chemical properties of the element

双语例句

• He patented the idea that the atom could be split
  他获得了“原子可以再分”这一概念的专利权。
• In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
  在这个模型中，认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
• There isn't atom of sense in what you say.
  你所说的话没有道理。
• And ion, which is an atom or group of atoms with an electrical charge.
  和离子，它是一个原子或原子的电荷组。
• Ion: Atom or group of atoms with one or more positive or negative electric charges.
  离子：带有一个或多个正电荷（阳离子）或负电荷（阴离子）的原子或原子团。
• So there's one electron in each hydrogen atom.
  所以每个氢原子中有两个电子。
• We utilize the atoms interact resonantly with a single-mode cavity, and introduce an auxiliary atom.
  提出了一个利用单模腔场和原子的共振相互作用制备团簇态的方案，并引入了辅助原子。
• 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。
• His theory of atom was not sufficient for treatment of large atoms or molecules.
  他的原子理论用于处理大的原子和分子是不能令人满意的。
• The compact core of the atom begins to appear.
  紧凑的原子内核现身了。