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

• sickbed
• sicken
• sickening
• sickeningly
• sickeningness
• sickie
• sickish
• sickle
• sickle alfalfa
• sickle cell
• sickle feather
• sickle lucerne
• sickle medick
• sickle-cell anaemia
• sickle-cell anemia
• sickle-cell disease
• sickle-shaped
• sicklebill
• sicklepod
• sickleweed golden aster
• sickly
• sickness
• sickness benefit
• sicko
• sickroom