Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.



The workhorse of your cooling system, the radiator is a device that keeps the engine at proper operating temperature by passing coolant through a series of water channels that allow heat to be released.

See Also:
Flushing Tee
Radiator Cap
Thermostatic Switch

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