chain
1. chain
A string made by connecting several iron rings together.
2. snow chains; tire chains
Chains that are wrapped around tires to prevent a vehicle from slipping on snow.
3. roller chain
A type of chain drive on a bicycle, motorcycle, etc., which connects the gears in order to transmit mechanical power to the wheels.
4. chain
A group of affiliated organizations, such as hotels, movie theaters, shops, etc., which deal with similar products and are run under common management policies.
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