Dextrorotatory /(?)/

Dex·tro·ro·ta·to·ry

Dextrorotatory

a.
  1. Turning, or causing to turn, toward the right hand; esp., turning the plane of polarization of luminous rays toward the right hand; as, dextrorotatory crystals, sugars, etc. Cf. Levorotatory. (Chem. & Opt.)