LEARNit Dictionary
cog
noun
/kɒɡ/
UK
/kɑːɡ/
US
1
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 move
چرخدنده, دندانه, دنده
2
a wheel with a series of teeth on the edge that fit between the teeth on the next wheel and cause it to move
چرخدنده, چرخ دنده, دندانه