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)

laevorotāˈtion noun

• hilled
• hillfolk
• hill-fort
• hill-forts
• hillier
• hilliest
• hilliness
• hillinesses
• hilling
• hillmen
• hillo
• hillock
• hillocks
• hillocky
• hill-pasture
• hill-pastures
• hills
• hillside
• hillsides
• hill station
• hill stations
• hilltop
• hilltops
• hillwalker
• hillwalkers