(ˈ)al|jinik- noun
Etymology: International Scientific Vocabulary algin + -ic
: an insoluble colloidal acid (C 6 H 8 O 6 ) n that in the form of salts is a constituent of the cell walls of marine brown algae and that is hard and horny when dry and is capable of absorbing large amounts of water when moist — called also algic acid, algin