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Definition of Sorbitan
1. Noun. (chemistry) a dehydration product of sorbitol having a tetrahydrofuran ring and four hydroxy groups; it is used in the manufacture of emulsifiers ¹
¹ Source: wiktionary.com
Medical Definition of Sorbitan
1. Sorbitol or sorbose and related compounds in ester combination with fatty acids, and with short oligo (ethylene oxide) side chains and an oleate terminus, to form detergents such as polysorbate 80. (05 Mar 2000)