Word.ws English Dictionary

defusion

UK/diːˈfjuːʒən/

defusion noun: the act of defusing. Also the misspelling of diffusion.

Noun (1)

defusion (uncountable)

  1. (proscribed) The act of defusing.
    • 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.1975, Peter Wilsher, Rosemary Righter, The Exploding Cities, Quadrangle, New York Times Book Co., →ISBN, page 13
    • 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.1987, Vladimir Karpov, translated by Y. S. Shurakov and L. Nicholas, The Commander, Brassey's, page 228

Noun (2)

defusion (countable and uncountable, plural defusions)

  1. (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.
    • […] acceptance involves deliteralization: the defusion of the derived relations and functions of events from the direct functions of these events.1994, Steven C. Hayes, Content, context, and the types of psychological acceptance, Context Press, →ISBN, page 31

Also used as

defusion is also the misspelling of diffusion.

Forms of defusion

pluraldefusions

Origin of defusion

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

From de- + fusion.

Questions about defusion

What does defusion mean?
Defusion means the act of defusing.
What part of speech is defusion?
Defusion is a noun.
How do you pronounce defusion?
Defusion is pronounced /diːˈfjuːʒən/ (UK).
What is the plural of defusion?
The plural of defusion is defusions.

Words near defusion in the dictionary

  1. defused
  2. defuser
  3. defusers
  4. defuses
  5. defusing
  6. defusion
  7. defusions
  8. defusive
  9. defuze
  10. defuzed
  11. defuzes

Source and license

Adapted from Wiktionary: defusion (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “defusion.” Word.ws, https://word.ws/defusion. Based on Wiktionary, CC BY-SA 4.0.