성적 쾌감을 얻기 위해 자신의 성기를 손이나 도구로 자극하는 행위.
The manual or mechanical stimulation of the genitals for sexual pleasure, typically involving self-stimulation.
예문:
"Medical professionals generally consider masturbation to be a normal and healthy part of human sexual development."
"The survey asked participants about their attitudes toward masturbation and sexual health."
"In some historical contexts, masturbation was erroneously linked to various physical ailments."