ㄧㄢˇㄕㄥyǎnshēngㄈㄨˋˊfùcí

衍声复词
  1. 聲音關係

compound word such as 玫瑰[mei2 gui1], 咖啡[ka1 fei1], whose meaning is unrelated to the component hanzi, which often cannot be used singly