Definition of alginic acid in English:

alginic acid

Syllabification: al·gin·ic ac·id
Pronunciation: /alˌjinik ˈasid


An insoluble gelatinous carbohydrate found (chiefly as salts) in many brown seaweeds. The sodium salt is used as a thickener in foods and many other materials.
More example sentences
  • Food, cosmetic and pharmaceutical industries use three common types of hydrocolloid extensively when thickening or gelling properties are required: carrageenan and agar from red seaweeds and alginic acid from brown seaweeds.
  • Under similar conditions the polysaccharides with carboxyl groups, such as alginic acid and polygalacturonic acid, also photodecomposed.
  • Their main component, alginic acid, is converted into calcium salts (which are water-insoluble) and sodium salts (which are water-soluble).


late 19th century: alginic from alga + -in1 + -ic.



Pronunciation: /ˈaljəˌnāt/
More example sentences
  • After the three flights, we measured the size of the pectoral muscle of the bird using a body mold in dental alginate, after which the bird was released.
  • Currently, they are developing a method to graft alginate, which is produced by brown seaweed, to cotton fibers.
  • Other gums used to a lesser extent might include guar, xanthan and alginate.

Definition of alginic acid in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day noisome
Pronunciation: ˈnoisəm
having an extremely offensive smell