Third-person singular simple present indicative form of deactivate.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "deactivates" in a sentence
"The polymer "deactivates" the sperm, or something like that."
"People go to great lengths to protect their privacy, she says, pointing to a teen she met who, instead of logging out of Facebook after a session, deactivates her account."
"Research shows that when most of us fall asleep, the brain network that involves attention to the outside world (the working memory network consisting primarily of the lateral frontal and parietal cortices) deactivates and our default brain network (medial prefrontal and posterior cingulate cortices) takes over."