different between defusion vs diffusion

English

Pronunciation

• (UK) IPA^(key): /di??fju???n/

Etymology 1

defuse +? -ion, apparently by analogy with fusion etc.

Noun

defusion (uncountable)

1. (proscribed) The act of defusing.
   • 1975, Peter Wilsher and Rosemary Righter, The Exploding Cities, Quadrangle, New York Times Book Co., ?ISBN, page 13

     It seemed to us to express the right mixture of urgent concern and bracing responsibility that the middle 1970s require. But as the whole book shows, the megalopolitan time bomb is ticking uncomfortably fast. There is little margin for anyone to take a leisurely defusion course.

   • 1987, Y. S. Shurakov and L. Nicholas (translators), Vladimir Karpov (author), The Commander, Brassey's, page 228

     The loss of the collections was immediately reported to General Petrov and he detailed a special team of engineers and mine defusion experts to aid the men of the 164th battalion in their search.

   • 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.

   • 1999, Elizabeth Economy and Michel Oksenberg, China Joins the World: Progress and Prospects, Council on Foreign Relations, ?ISBN, page 115

     China’s long border made land mines an essential and legitimate means of defense, and the costs of converting large stockpiles and its productions lines to meet the three criteria in the revised Protocol II (detectability, self-defusion, and self-destruction) would be enormous.

   • 20C, R. K. Murthi (translator), Salma Zaidi (author), The Prophecies of Nostradamus, Pustak Mahal, Delhi, ?ISBN, page 129

     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.

Etymology 2

de- +? fusion

Noun

defusion (countable and uncountable, plural defusions)

1. (psychology) 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.
   • 1994 Steven C. Hayes, "Content, context, and the types of psychological acceptance", Context Press, ?ISBN, page 31.

     […] acceptance involves deliteralization: the defusion of the derived relations and functions of events from the direct functions of these events.

Etymology 3

Noun

defusion

1. Misspelling of diffusion.
   • 1946 June 29, David B. Parker (editor), A Bombing Of Hiroshima And Nagasaki, The Manhattan Engineer District, Kessinger Publishing (2004), ?ISBN, page 27

     The duration of the heat radiation from the bomb is so short, just a few thousandths of a second, that there is no time for the energy falling on a surface to be dissipated by thermal defusion; the flash burn is typically a surface effect.

English

Etymology

Borrowed from Latin diffusionem (accusative of diffusio), from diffund?; can be decomposed as diffuse +? -ion.

Pronunciation

• (UK) IPA^(key): /d??fju???n/
• Rhymes: -u???n

Noun

diffusion (countable and uncountable, plural diffusions)

1. The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.
2. (physics) The scattering of light by reflection from a rough surface, or by passage through a translucent medium.
3. (physics) The intermingling of the molecules of a fluid due to random thermal agitation.
4. The spread of cultural or linguistic practices, or social institutions, in one or more communities.
5. (marketing) The gradual spread and adoption of goods or services.
6. (physics, weather) Exchange of airborne media between regions in space in an apparently random motion of a small scale.
7. The movement of water vapor from regions of high concentration (high water vapor pressure) toward regions of lower concentration.

Translations

See also

• diffuser

French

Etymology

Borrowed from Latin diffusio, diffusionem. Synchronically analysable as diffuser +? -ion.

Noun

diffusion f (plural diffusions)

1. broadcasting, showing
2. dissemination, diffusion (of culture, knowledge, etc.)
3. circulation (of a news medium)
4. (physics) diffusion

Derived terms

• liste de diffusion

Related terms

• diffus
• diffuser

See also

• émission

Further reading

• “diffusion” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).