stereogenic

adjective4

1. •
   describing a grouping of atoms in a molecule

   • Vinylcyclopropanes with up to three stereogenic centers are readily formed in the reaction between vinylcarbenoids and alkenes. — 1997
2. •
   consisting of a central atom and four distinguishable ligands such that the interchange of any two leads to a stereoisomer
3. •
   consisting of four non-coplanar atoms such that rotation about the central bond leads to a stereoisomer
4. •
   consisting of a double bond with substituents which give rise to cis-trans isomerism