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calcium-channel blocker

(Encyclopedia)calcium-channel blocker, any of a class of drugs used in treating hypertension, angina pectoris, and certain arrhythmias. They prevent the calcium ions needed for muscle contraction from entering the ...

Saint George's Channel

(Encyclopedia)Saint George's Channel, strait, c.100 mi (160 km) long and 50 to 95 mi (80–153 km) wide, linking the Atlantic Ocean and the Irish Sea. It separates SE Ireland from Wales. ...

Georgian Bay

(Encyclopedia)Georgian Bay, large northeastern extension of Lake Huron, S Ont., Canada, separated from Lake Huron by Manitoulin Island and by the Bruce Peninsula; Lucas Channel is its chief connection with Lake Hur...

Alderney

(Encyclopedia)Alderney ōrēnyēˈ [key], anc. Riduna, island, c. 3 sq mi (7.7 sq km), in the English Channel, northernmost of the larger Channel Islands. It is separated from the Frenc...

Guernsey

(Encyclopedia)Guernsey gûrnˈzē [key], island, 25 sq mi (65 sq km), in the English Channel, second largest of the Channel Islands. Guernsey bailiwick (2005 est. pop. 65,000) includes Alderney, Sark, Herm, Brechou...

Andaman and Nicobar Islands

(Encyclopedia)Andaman and Nicobar Islands ănˈdəmən, nĭkˈōbär [key], union territory (2001 provisional pop. 356,265), India, in the Bay of Bengal. Port Blair, in the Andamans, is...

Jersey

(Encyclopedia)Jersey jûrˈzē [key], island (2005 est. pop. 90,800), 45 sq mi (117 sq km), in the English Channel, largest of the Channel Islands, which are dependencies of the British crown. It is 15 mi (24 km) f...

Jethou

(Encyclopedia)Jethou: see Channel Islands, British dependency. ...

Minquiers

(Encyclopedia)Minquiers, Great Britain: see Channel Islands. ...

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