Having forms of different handedness which are not mirror-symmetric.
Chiral
See also
Dissymmetric, Enantiomer, Handedness, Mirror Image, ReflexibleExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Chiral." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Chiral.html