levorotatory

/ˌliːvəˈroʊtətɔːri/
adjective
  1. Describing a substance that rotates the plane of polarized light to the left (counterclockwise).
    • The sugar solution was levorotatory, which surprised the students.
    • Many natural amino acids are levorotatory, meaning they spin light in a specific direction.
    • In chemistry class, we learned that levorotatory compounds rotate light to the left.
What does "levorotatory" mean? | whatsthatwordmean | whatsthatwordmean