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An arm of the Mediterranean Sea between the Italian peninsula and the islands of Corsica, Sardinia, and Sicily. The Strait of Messina connects it with the Ionian Sea.
(Placename) an arm of the Mediterranean between Italy and the islands of Corsica, Sardinia, and Sicily
Tyr•rhe′ni•an Sea′(tɪˈri ni ən)
a part of the Mediterranean, bounded by W Italy, Corsica, Sardinia, and Sicily.