Webster's 1913 Dictionary
CARRAGEEN; CARRIGEEN
CARRAGEEN; CARRIGEEN Car "ra *geen `, Car "ri *geen `, n.
Defn: A small, purplish, branching, cartilaginous seaweed (Chondrus crispus ), which, when bleached, is the Irish moss of commerce. [Also written carragheen, carageen.]
New American Oxford Dictionary
carrageen
car ra geen |ˈkarəˌgēn ˈkɛrəɡin |(also carragheen or carrageen moss ) ▶noun an edible red shoreline seaweed with flattened branching fronds, found in both Eurasia and North America and used to produce carrageenan. Also called Irish moss. [Chondrus crispus, phylum Rhodophyta. ] ORIGIN early 19th cent.: from Irish carraigín.
carrageenan
car ra gee nan |ˌkarəˈgēnən kɛrəˈɡinən | ▶noun a substance extracted from red and purple seaweeds, consisting of a mixture of polysaccharides. It is used as a thickening or emulsifying agent in food products. ORIGIN 1960s: from carrageen + -an .
Oxford Dictionary
carrageen
carrageen |ˈkarəgiːn |(also carragheen or carrageen moss ) ▶noun [ mass noun ] an edible red shoreline seaweed with flattened branching fronds, found in both Eurasia and North America. Also called Irish moss. ●Chondrus crispus, division Rhodophyta. ORIGIN early 19th cent.: from Irish carraigín.
carrageenan
carrageenan |ˌkarəˈgiːnən | ▶noun [ mass noun ] a substance extracted from red and purple seaweeds, consisting of a mixture of polysaccharides. It is used as a thickening or emulsifying agent in food products. ORIGIN 1960s: from carrageen + -an .