ˈōnəˌnizəm noun
( -s )
Etymology: probably from (assumed) New Latin onanismus, from Onan, son of Judah described in Gen 38: 9 as practicing coitus interruptus + Latin -ismus -ism
1. : coitus interruptus
2. : masturbation
3. : self-gratification
the kind of intellectual onanism to which he was dedicated — Esther P. Shiverick
• onan·is·tic |ōnə|nistik adjective