Irish Sea

Irish Sea, arm of the Atlantic Ocean, c.40,000 sq mi (103,600 sq km), 130 mi (209 km) long and up to c.140 mi (230 km) wide, lying between Ireland and Great Britain. It is connected with the Atlantic by the North Channel and (on the south) by St. George's Channel. Ireland is on its west shore, Scotland, England, and Wales on the east. The principal islands in the sea are the Isle of Man, Anglesey, and Holyhead. The chief ports are Dublin, Liverpool, Manchester, Fleetwood, and Dún Laoghaire.

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Irish Sea

Arm of the North Atlantic Ocean that separates Ireland from Great Britain. Connected with the Atlantic by North Channel and by St. George's Channel, it is about 130 mi (210 km) long and 150 mi (240 km) wide. Its total area is about 40,000 sq mi (100,000 sq km). Its greatest depth measures about 576 ft (175 m). The Isle of Man and Anglesey are its two principal islands.

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Irish Sea

an arm of the North Atlantic Ocean between Great Britain and Ireland

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Irish Sea [′ī·rish ′sē]

(geography)

A marginal sea of the Atlantic Ocean between Ireland and England, approximately 53°N latitude and 5°W longitude.