Simple past tense and past participle of quarantine.(verb)
In quarantine; isolated.(adjective)
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Use "quarantined" in a sentence
"In a sense Amazon now has publicly admitted that private clouds do exist and the core differentiation is isolation (what I call quarantined cloud infrastructure), be it virtual or physical."
"I had been deemed a virus and am subject to be quarantined from the system."
"Furthermore, the idea that the N-word can be can be effectively quarantined from the English language is, at the present time, absolutely ludicrous."