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Jyutping din6 dung6 ngaa4 caat3
Pinyin diàn dòng yá shuā

Definitions (Wiktionary)
  1. noun
    electric toothbrush; power toothbrush

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Jyutping din6 dung6 ngaa4 caat2
Pinyin diàn dòng yá shuā

Definitions (粵典–words.hk)
  1. 名詞
    用電力​驅動刷​頭振​動​嘅​牙刷​(​量​詞​:​支​)
    electric toothbrush
    • 有人話用電動牙刷啲牙會乾淨啲。
      有人话用电动牙刷啲牙会干净啲。
      jau5 jan4 waa6 jung6 din6 dung6 ngaa4 caat2 di1 ngaa4 wui5 gon1 zeng6 di1.
      Some say electric toothbrushes are better at cleaning.
Examples (粵典–words.hk)
  1. Cantonese
    电动牙刷
    電動牙刷
    din6 dung6 ngaa4 caat2
    • electric toothbrush
  2. Cantonese
    有人话用电动牙刷啲牙会干净啲。
    有人話用電動牙刷啲牙會乾淨啲。
    jau5 jan4 waa6 jung6 din6 dung6 ngaa4 caat2 di1 ngaa4 wui5 gon1 zeng6 di1.
    • Some say electric toothbrushes are better at cleaning.