laevorotatory or levorotatory /lē-vō-rōˈtə-tə-ri or -rō-tāˈ/

1. Counter-clockwise
2. Rotating the plane of polarization of light to the left (optics)

• commensurably
• commensurate
• commensurately
• commensurateness
• commensuration
• commensurations
• comment
• commentariat
• commentaries
• commentary
• commentate
• commentated
• commentates
• commentating
• commentation
• commentations
• commentator
• commentatorial
• commentators
• commented
• commenter
• commenters
• commenting
• commentor
• commentors