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)

• clumpier
• clumpiest
• clumpiness
• clumpinesses
• clumping
• clumps
• clumpy
• clumsier
• clumsiest
• clumsily
• clumsiness
• clumsinesses
• clumsy
• clunch
• clunches
• clung
• Cluniac
• clunk
• clunked
• clunker
• clunkers
• clunkier
• clunkiest
• clunking
• clunks