Laevorotation

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Levorotation \Le`vo*ro*ta"tion\, n. [Written also
     {l[ae]vorotation}.] [Levo- + rotation.] (Physics & Chem.)
     Rotation in the direction of an outgoing right-handed screw;
     counter-clockwise rotation; -- applied chiefly to the turning
     of the plane of polarization of light.
     [Webster 1913 Suppl.]