1. Tooth on the rim of gear wheel
   "A broken cog caused the machine to malfunction";
   - sprocket
    
2. A subordinate who performs an important but routine function
   "he was a small cog in a large machine"

1. Roll steel ingots
   "The factory workers cogged the steel to prepare it for further processing"
    
2. Join pieces of wood with cogs
   "The carpenter cogged the wooden beams together"

Derived forms: cogging, cogged, cogs

Type of: foot soldier, join, roll, roll out, subordinate, subsidiary, tooth, underling, understrapper [informal]

Part of: cogwheel, gear, gear wheel, geared wheel

Encyclopedia: Cog