1. masturbation; self-stimulation of the genitals for sexual pleasure
Usage: vulgar; formal or medical contexts
2. coitus interruptus; sexual intercourse interrupted before ejaculation to prevent conception
Usage: archaic; medical or historical contexts

Examples

• The term onanism derives from the biblical figure Onan.
• In medical literature, onanism was once considered a serious health concern.
• Historical attitudes toward onanism have changed significantly over time.
• The practice of onanism as a contraceptive method is now largely obsolete.
• Onanism was a taboo subject in Victorian society.