- 1defuse something to stop a possibly dangerous or difficult situation from developing, especially by making people less angry or nervous Local police are trying to defuse racial tension in the community.
- 2defuse something to remove the fuse from a bomb so that it cannot explode Police closed the road while they defused the bomb.
NAmE//diˈfyuz//, NAmE//dɪˈfyuz//Verb Forms present simple I / you / we / they defuse
he / she / it defuses
past simple defused
-ing form defusing