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carrageen

[kar-uh-geen] /ˈkær əˌgin/
noun
Also, carragheen.
Origin
1825-1835
1825-35; named after Carrageen in SE Ireland
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for carrageen

carrageen

/ˈkærəˌɡiːn/
noun
1.
an edible red seaweed, Chondrus crispus, of North America and N Europe Also called Irish moss
Word Origin
C19: from Carragheen, near Waterford, Ireland, where it is plentiful
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for carrageen

Irish moss

(Chondrus crispus), species of red tufted seaweed with thin fronds from 5 to 25 cm (2 to 10 inches) long that grows abundantly along the rocky parts of the Atlantic coast of the British Isles, continental Europe, and North America. The plant is cartilaginous, varying in colour from a greenish yellow to a dark purple; when sun-dried and bleached it has a yellowish, translucent, hornlike aspect and consistency. The principal constituent of Irish moss is a gelatinous substance, carrageenan, which can be extracted by boiling. Carrageenan is used for curing leather and as an emulsifying and suspending agent in pharmaceuticals, food products, cosmetics, and shoe polishes. In North America it is harvested from shallow water by dredging with special rakes; in Europe it is usually obtained from plants cast ashore.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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