yà​yīn​jié​dān​wèi

subsyllabic unit

  1. proper nounnoun
    second
    (bound form) second; next to; inferior or secondary in quality or rank; sub-
  2. syllable
    the smallest unit of spoken sound, consisting of one or more sounds; in Chinese, one syllable usually corresponds to one character
  3. constituent unit
    An independent part or element of a larger whole, including structural or linguistic components such as grammatical or lexical units