- turning or circling to the left, in a counterclockwise direction
- that turns the plane of polarized light counterclockwise: said as of certain crystals
Origin of levorotatorylevo- + rotatory
Of or relating to an optically active substance that rotates the plane of polarized light to the left, or counterclockwise (when looking toward the light source): Only levorotatory amino acids are biologically active.
levo- +"Ž rotatory