Onanism n. : Self-pollution; masturbation.

Example:
Do you think Onanism is a wrong word for masturbation?

Taxonomy
Onan, narrative, rain, ground, free encyclopedia, Judah and Tamar, wasted seed, brother, widow, Genesis, clan, Septimus, coitus interruptus, interpretations, onanism, Judah, Clement of Alexandria, wife.

Defination from the web:
... of Judah.[1] Certain interpretations of the narrative concerning him have led to the term onanism, which means masturbation or coitus interruptus. ... Onanism, a sin that requires hundreds of hours of practice to get right, or at least that's what I told myself. ...