Adjective
of or pertaining to stereoisomers
exhibiting stereoisomerism
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
Smith’s diene is quite a reactive dienophile, reacting with cyclopentadiene in refluxing chloroform to furnish a mixture of stereoisomeric adducts by exclusive reaction at the β-face of the cyclobutene π-center.