I'm sorry for any confusion, but "Adosterol" is not a recognized term in medical or scientific literature. It's possible that there may be a spelling mistake or it could be a term used only within a specific context, such as a code name in a research study. If you have more information about where this term was used, I might be able to provide a more accurate response. However, without additional context, I can't provide a medical definition for "Adosterol".