Pronunciation: ah′gar, ā′gar
Definition: A complex polysaccharide (a sulfated galactan) derived from seaweed (various red algae); used as a solidifying agent in culture media; it has the valuable properties of melting at 100°C, but not of solidifying until 49°C. Synthetic agars are also available.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.