1. A lever pivoted at the centre; used especially to push a valve down in an internal-combustion engine
   - rocker arm

Derived forms: valve rockers

Type of: lever

• checking program
• checklist
• checkmate
• checkout
• checkout counter
• checkout line
• checkout time
• checkpoint
• checkrein
• checkroom
• checkrow
• checksum
• checkup
• cheddar
• cheddar cheese
• cheddar pink
• cheek
• cheek by jowl
• cheek muscle
• cheek pouch
• cheekbone
• cheekily
• cheekiness
• cheekpiece
• cheeky