algin

[al-jin]

al·gin

[al-jin]
noun Chemistry.
any hydrophilic, colloidal substance found in or obtained from various kelps, as alginic acid or one of its soluble salts.

Origin:
1880–85; alg(ae) + -in2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Algin is always a great word to know.
So is amaranth. Does it mean:
a purplish-red, water-soluble powder, C20H11N2O10Na3, an azo dye used chiefly to color pharmaceuticals, food, and garments
a preparation containing an insoluble dye converted by reduction into a soluble leuco base, or a vessel containing such a preparation
Collins
World English Dictionary
algin (ˈældʒɪn)
 
n
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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Science Dictionary
algin   (āl'jĭn)  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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