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Jyutping mak6 jyu4 gwat1
Pinyin mò yú gǔ

Definitions (粵典–words.hk)
  1. 名詞
    將墨魚​硬​組織​打磨​而​成​嘅​白色​粉末​,​注意​墨魚​身體​其實​係​冇​骨​,​主要​成份​係​碳酸​鈣​,​中醫​認為​有​藥效
    cuttlefish bone powder, made from the internal shell of cuttlefish which is not really bone, mainly composed of calcium carbonate, used as a Chinese medicine