- 对映体 duìyìngtǐ enantiomerin chemistry, one of two forms of a molecule that are mirror images of each other
- 对映异构 duìyìngyìgòu enantiomerismthe phenomenon in chemistry where two molecules are mirror images of each other but cannot be superimposed; enantiomeric isomerism
- 对映异构体 duìyìngyìgòutǐ enantiomerenantiomeric isomer in chemistry