de·ac·ti·vate [ dee ákti vàyt ](past and past participlede·ac·ti·vat·ed, present participlede·ac·ti·vat·ing, 3rd person present singularde·ac·ti·vates)
transitive verb
Definition:
1. make something inactive: to prevent something that is active or live, especially an explosive device, from operating
2. stop active compound from working: to render a biologically active compound such as an enzyme inactive or ineffective
3. end active military status: to make a military unit no longer active
