Simple past tense and past participle of federate.(verb)
United, as a federation, under a central government(adjective)
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Use "federated" in a sentence
"A single-origin federated identity network will always fail on the internet (as Joseph Smarr and John McCrea like to say of Facebook Connect: We’ve seen this movie before)."
"So-called federated identity management allows agency and corporate sites to trust credentials that are issued by an outside entity."
"True, they are indirectly elected to the Sound Transit board, but there's a reason the agency has what is known as a federated system."