1. Produced by erosion

Encyclopedia: Erosional

• power station
• power steering
• power structure
• power surge
• power system
• power takeoff
• power tool
• power train
• power trip
• power unit
• power user
• power walking
• power worker
• power-assisted
• power-assisted steering
• power-dive
• power-driven
• power-station worker
• powerboat
• powerboating
• powerbroker
• powered
• powerful
• powerfully
• powerfulness