verb (used with object), de·fused, de·fus·ing.
to remove the fuze from (a bomb, mine, etc.).
to make less dangerous, tense, or embarrassing: to defuse a potentially ugly situation.
verb (used without object), de·fused, de·fus·ing.
to grow less dangerous; weaken.
Origin of defuse
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
sometimes US defuze
to remove the triggering device of (a bomb, etc)
to remove the cause of tension from (a crisis, etc)
Avoid confusion with diffuse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Online Etymology Dictionary, © 2010 Douglas Harper