1. Of or pertaining to the lensing of light and image formation

Encyclopedia: Dioptric

• road movie
• road rage
• road roller
• road sense
• road show
• road sign
• road surface
• road tax
• road to Damascus
• road-test
• roadbed
• roadblock
• roadbook
• roadeo
• roadhog
• roadhouse
• roadie
• roadkill
• roadless
• roadman
• roadrunner
• roads
• roadside
• roadstead
• roadster