sorbitan Syllabification: (sor·bi·tan)Pronunciation: /ˈsôrbəˌtan/Definition of sorbitan noun [usually as modifier] Chemistry any of a group of compounds that are cyclic ethers derived from sorbitol or its derivatives. Origin: 1930s: blend of sorbitol and anhydridesorbitan in other Oxford dictionaries Definition of sorbitan in the British & World English dictionary