agar -
An agarose, the principle constituent of the commercial gel.
Wikipedia
Agar or agar-agar is a gelatinous substance derived from red algae. Historically and in a modern context, it is chiefly used as an ingredient in desserts throughout Asia and also as a solid substrate to contain culture medium for microbiological work. The gelling agent is an unbranched polysaccharide obtained from the cell walls of some species of red algae, primarily from the genera Gelidium and Gracilaria, or seaweed (Sphaerococcus euchema).
OmegaWiki Dictionary
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agar A dialect of the South Central Dinka language.
agar A gelatinous material obtained from the marine algae, used as a bacterial culture medium, in electrophoresis and as a food additive.
