
1) Alginic acid 2) Kelp product 3) Thickening gum
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https://www.crosswordclues.com/clue/algin

• (n.) A nitrogenous substance resembling gelatin, obtained from certain algae.
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http://thinkexist.com/dictionary/meaning/algin/

(from the article `kelp`) ...of brown algae. Until early in the 19th century the ash of such seaweeds was an important source of potash and iodine. Giant kelps, of the genus ... ...from their natural sources, also are used as adhesives. Agar, a marine-plant colloid (suspension of extremely minute particles), is extracted by ... [2 re...
Found on
http://www.britannica.com/eb/a-z/a/45

A polysaccharide extracted from brown seaweeds. A derivative, sodium alginate, is a thickening agent and emulsion stabilizer used in the food industry, especially in ice cream manufacture, and as sizing in paper and textiles.
Found on
http://www.daviddarling.info/encyclopedia/A/algin.html

<plant biology> This gelatinous material, a polysaccharide extract from brown algae, is widely used in foods, medicines, and industrial and household products. ... The main algae that produce it are Laminaria species and Macrocystispyrifera (a chemically different version of algin is produced by the bacterium Azobacter vinelandii.) ... (09 Oc...
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http://www.encyclo.co.uk/local/20973
Al'gin noun (Chemistry) A nitrogenous substance resembling gelatin, obtained from certain algæ.
Found on
http://www.encyclo.co.uk/webster/A/54

Type: Term Pronunciation: al′jin Definitions: 1. A carbohydrate product of a seaweed, Macrocystis pyrifera; used as a gel in pharmaceutical preparations. Synonyms: sodium alginate
Found on
http://www.medilexicon.com/medicaldictionary.php?t=2173

Algin (Alginic Acid) is an insoluble polymeric, polysaccharide substance resembling albumin, but not coagulated by heat. It is obtained from seaweed, chiefly the genera Fucus and Laminaria, as a precipitate after boiling with sodium carbonate and adding hydrochloric acid. It is used as a dressing for fabrics and paper and as a thickening for soups ...
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http://www.probertencyclopaedia.com/browse/GA.HTM

[
n] - a gum used especially as a thickener or emulsifier
Found on
http://www.webdictionary.co.uk/definition.php?query=algin

algin 1. A mucilaginous substance, alginic acid, obtained from certain algae. 2. Any of several derivatives; such as, sodium alginate or alginic acid, of a gelatinous substance extracted from certain brown algae and widely used as a thickening, stabilizing, emulsifying, or suspending agent in industrial, pharmaceutical, and food products; such as,...
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http://www.wordinfo.info/words/index/info/view_unit/76/

This soothing, water-absorbing algae extract is commonly added to thicken hair- and skin-care products and to help makeup glide on smoothly. It's also found in the filmy coating created by some face masks and peels.
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https://www.allure.com/story/skin-care-terms-glossary-definitions
alginic acid noun a gum used especially as a thickener or emulsifier
Found on
https://www.encyclo.co.uk/local/20974

any hydrophilic, colloidal substance found in or obtained from various kelps, as alginic acid or one of its soluble salts.
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https://www.infoplease.com/dictionary/algin
No exact match found.