Two nonsuperimposable objects which are mirror images of each other are called enantiomers. The term enantiomer is synonymous with enantiomorph.
For example, the letters b and d are enantiomers of each other.
Enantiomer
See also
Amphichiral Knot, Chiral, Dissymmetric, Handedness, Mirror Image, ReflexibleExplore with Wolfram|Alpha
References
Ball, W. W. R. and Coxeter, H. S. M. "Polyhedra." Ch. 5 in Mathematical Recreations and Essays, 13th ed. New York: Dover, pp. 130-161, 1987.Referenced on Wolfram|Alpha
EnantiomerCite this as:
Weisstein, Eric W. "Enantiomer." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Enantiomer.html