Third-person singular simple present indicative form of reactivate.(verb)
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Use "reactivates" in a sentence
"Rather, it reactivates the cliques that the hippocampus bound together at the time."
"As soon as it finds some, it fixates on it with tunnel vision, fast-tracks it into memory storage, and then reactivates it at the least hint of anything even vaguely similar."
"The disease reactivates the brain of its host but only after oxygen deprivation and the virus has destroyed higher brain function."