齒齦音 [齿龈－]

Jyutping ci2 ngan4 jam1
Pinyin chǐ yín yīn

Definitions (CC-CEDICT)
  1. alveolar, apical, or supradental sound (linguistics)
Definitions (Wiktionary)
  1. noun
    alveolar consonant
    (syn.) 齦音, 龈音