algin

noun Chemistry.

1. any hydrophilic, colloidal substance found in or obtained from various kelps, as alginic acid or one of its soluble salts.

noun

1. alginic acid or one of its esters or salts, esp the gelatinous solution obtained as a by-product in the extraction of iodine from seaweed, used in mucilages and for thickening jellies

1. A mucilaginous polysaccharide occurring in the cell walls of brown algae. Its derivatives are widely used as thickening, stabilizing, emulsifying, or suspending agents in industrial, pharmaceutical, and food products, such as ice cream.