has primary output hyaluronic acid glycosaminoglycan biosynthetic process biosynthetic process hyaluronan metabolic process hyaluronan biosynthetic process https://github.com/geneontology/go-ontology/issues/29745 Reactome:R-HSA-2142850 hyaluronan formation hyaluronan synthesis hyaluronan biosynthesis The chemical reactions and pathways resulting in the formation of hyaluronan, the naturally occurring anionic form of hyaluronic acid. Hyaluronan is a type of non-sulfated glycosaminoglycan composed of the repeating disaccharide unit beta(1,4)-D-glucuronic acid-beta(1,3)-N-acetyl-D-glucosamine. hyaluronan anabolism GO:0030213