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atom

英 [ˈætəm]

美 [ˈætəm]

n.  原子

复数:atoms 

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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
      1. (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。
        • So, which atom is in need of those lone pair electrons?
          那么,哪个原子需要这对孤对电子呢?
        • The atom of lithium is made up of three electrons, three protons and four neutrons.
          锂原子是由三个电子、三个质子和四个中子组成的。
        • There isn't atom of sense in what you say.
          你所说的话没有道理。
        • 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。
        • The compact core of the atom begins to appear.
          紧凑的原子内核现身了。
        • A molecule of ammonia is made up of one atom of nitrogen and three atoms of hydrogen.
          氨分子包含一个氮原子和三个氢原子。
        • The anion OH having one oxygen and one hydrogen atom.
          含一个氧原子和一个氢原子的OH负离子。
        • An atom itself is a complete whole, with its electrons, protons and neutrons and other elements
          一个原子本身就是一个完整的整体,包括电子、质子、中子及其他元素。
        • 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。