co·er·cion /kō-'ər-zhən, -shən/ n: the use of express or implied threats of violence or reprisal (as discharge from employment) or other intimidating behavior that puts a person in immediate fear of the consequences in order to compel that person to act against his or her will; also: the defense that one acted under coercion see also defense, duress compare undue influence
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.