复元音

複元音
fùyuányīn
  1. (phonetics) compound vowel
  2. compound vowel

Wiktionary

Entry Composition

1 复元 fùyuán variant of 复原 fùyuán
2 音 yīn
  1. sound
  2. noise
  3. note (of musical scale)
  4. tone
  5. news
  6. syllable
  7. reading (phonetic value of a character)