sprocket /sprokˈit/

1. A tooth on the rim of a wheel or capstan for engaging the chain
2. A toothed cylinder for driving a film, tape, etc
3. A sprocket wheel
4. A piece of wood used to build a roof out over eaves

sprocket wheel noun

A wheel with sprockets

• up-train
• uptrain
• uptrained
• uptraining
• up-trains
• uptrains
• uptrend
• uptrends
• uptrilled
• upturn
• upturned
• upturning
• upturnings
• upturns
• uptying
• UPU
• upvaluation
• upvaluations
• upvalue
• upvalued
• upvalues
• upvaluing
• UPVC
• uPVC
• upwaft