triplet

triplet
noun
  1. (一般作 triplets)one of three children or animals born at the same birth
    三胞胎中的一个
  2. a set or succession of three similar things
    三个一组,三件一套
    ■(Music)a group of three equal notes to be performed in the time of two or four
    (乐)三连音符
    ■a set of three rhyming lines of verse
    三行联句
  3. (Physics & Chemistry)an atomic or molecular state characterized by two unpaired electrons with parallel spins
    (物理,化)(原子或分子的)三重态(由两个平行旋转的不成对电子组成)
    ■a group of three associated lines close together in a spectrum or electrophoretic gel
    三合光谱
语源
  1. mid 17th cent.: from triple, on the pattern of doublet
英语宝典
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