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Jyutping sek6 neoi2
Pinyin shí nǚ

Definitions (粵典–words.hk)
  1. 名詞
    身體​結構​無法​與​男性​性交​嘅​女性
    sexually unresponsive woman; a frigid girl; literally: stone girl

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Jyutping sek6 neoi5
Pinyin shí nǚ

Definitions (CC-CEDICT)
  1. female suffering absence or atresia of vagina (as birth defect)
Definitions (Wiktionary)
  1. noun
    woman who is unable to have sex for congenital anatomical reasons, such as vaginal hypoplasia