cog /kɒɡ $ kɑːɡ/
noun [countable][
Date: 1200-1300;
Origin: From a Scandinavian language]
1. a wheel with small bits sticking out around the edge that fit together with the bits of another wheel as they turn in a machine
2. one of the small bits that stick out on a cog
3. a cog in the machine/wheel someone who only has a small unimportant job in a large organization
[TahlilGaran] Dictionary of Contemporary English ▲