1992, Scott M. Cutlip, “The invasion of public relations' domain by lawyers and marketers”, section 1, Communication World, International Association of Business Communicators
Contrast Exxon's failures with Johnson & Johnson's successful defusion of its Tylenol crisis - that response directed by a seasoned public relations officer - Larry Foster.
The story (as all stories do) ends with the timely interception of the bomb and its defusion.
2002 August 1, Sara Powell, “Nuclear-powered animosities. (Human Rights)”, Washington Report on Middle East Affairs, American Educational Trust
Dr. Ghulam Nabi Fai, executive director of the Kashmiri-American Council, argued that the international community...made a fundamental mistake by making its primary objective the defusion of tension rather than trying to settle the issue of Kashmir.
noun
(psychology, neologism) The separation of an emotion or behavior-provoking verbal stimulus from the unwanted emotional or behavioral response as part of a therapeutic process. A neologism meant to indicate the reversal of thought-emotion-action fusion.