Word Study
Levorotatory
CIDE DICTIONARY
Levorotatory, a. [Levo- + rotatory.].
Turning or rotating the plane of polarization of light towards the left; -- applied to crystals and compounds exhibiting optical activity, such as levulose, left-handed quartz crystals, etc. Opposite of dextrorotatory . [1913 Webster]
For further exploring for "Levorotatory" in Webster Dictionary Online