mas ‧ tur ‧ bate /ˈmæstəbeɪt $ -tər-/ BrE AmE verb [intransitive and transitive]
[ Date: 1800-1900 ; Language: Latin ; Origin: past participle of masturbari ]
to give yourself or another person sexual pleasure by touching or rubbing the sexual organs
—masturbation /ˌmæstəˈbeɪʃ ə n $ -tər-/ noun [uncountable]