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Jyutping tit3 daan2
Pinyin tiě dàn

Definitions (Wiktionary)
  1. noun
    iron egg (a soy egg snack from Taiwan)

鐵蛋 [铁-]

Jyutping
Pinyin tiě dàn

Definitions (CC-CEDICT)
  1. iron egg, a Taiwanese snack made by stewing eggs in soy sauce and air-drying them each day for a week