cog
noun /kɒɡ/
/kɑːɡ/
Idioms - one of a series of teeth on the edge of a wheel that fit between the teeth on the next wheel and cause it to moveTopics Engineeringc2
enlarge image - (also cogwheel)a wheel with a series of teeth on the edge that fit between the teeth on the next wheel and cause it to move
Word OriginMiddle English: probably of Scandinavian origin and related to Swedish kugge and Norwegian kug.
Idioms
a cog in the machine/wheel
- (informal) a person who is a small part of a large organization