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Jyutping ngaa4 jan3
Pinyin yá yìn

Definitions (Wiktionary)
  1. noun, colloquial
    teethmark; bitemark
  2. noun, literary
    seal made from ivory
  3. noun
    the Buddha's tooth
    (syn.) 佛牙

牙印 [--]

Jyutping
Pinyin yá yìn

Definitions (CC-CEDICT)
  1. teeth marks (left on sth)
  2. bite marks