龈音

齦音
yínyīn
alveolar sound (linguistics)

CEDICT

linguistics

Entry Composition

1 龈 yín gums (of the teeth)
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)