Stereoselectivity is a term used to describe a chemical reaction that selectively produces one stereoisomer over the other. There are several synonyms for this term that can be used interchangeably. These include stereospecificity, stereodiscrimination, enantioselectivity, and diastereoselectivity. Stereospecificity refers to a reaction that produces a specific stereoisomer. Stereodiscrimination is similar, but it also includes reactions that don't necessarily produce a single stereoisomer. Enantioselectivity refers specifically to the production of one enantiomer over the other. Finally, diastereoselectivity refers to reactions that produce one diastereomer over the other. All of these terms are related to stereoselectivity and can be used to describe different aspects of stereoisomer production.