compulsion /kəmˈpʌlʃən/ noun3 •The use of authority, influence, or other power to force (compel) a person or persons to act.From the opening of the City & South London Railway independent electric locomotives were used under compulsion of the Board of Trade. — 1941 •An irrational need or irresistible urge to perform some action, often despite negative consequences.During the basketball game, I had a sudden compulsion to have a smoke. •The lawful use of violence (i.e. by the administration). formscompulsions