masturbate /ˈmæstəˌbeɪt/ ( masturbating, masturbated, masturbates )

• 1. 

  V-I If someone masturbates, they stroke or rub their own genitals in order to get sexual pleasure. 手淫

  例：

  Do women masturbate as often as men?

  女性手淫如男人一样频繁吗？

• 2. 

  masturbation N-UNCOUNT 手淫