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

• sword-shaped
• swordbill
• swordfish
• swordlike
• swordplay
• swordsman
• swordsmanship
• swordtail
• sworn
• swosh
• swot
• swot up
• swtichblade
• swung dash
• sybarite
• sybaritic
• sycamore
• sycamore fig
• syce
• syconium
• sycophancy
• sycophant
• sycophantic
• sycosis
• Sydenham