carrageenin

n. colloidal substance obtained from edible red seaweed (used in food products or industrial and pharmaceutical products as a thickening and stabilizing agent)

Carrageenans or carrageenins (pronounced ) are a family of linear sulphated polysaccharides extracted from red seaweeds. The name is derived from a type of seaweed that is abundant along the Irish coastline. Gelatinous extracts of carrageen seaweed (also known as Irish moss) have been used as food additives for hundreds of years, though analysis of carrageenan safety as an additive continues
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Car·ra·geen·an or car·ra·geen·in n. Any of a group of closely related colloids derived from several red algae, widely used as a thickening, [more]Carrageenin - Community and Resources

Noun
1. a colloidal extract from carrageen seaweed and other red algae
(synonym) carrageenan
(hypernym) gum

CARRAGENINA