dial noun definition in Parts of a car topic from the Oxford Advanced Learner's Dictionary

dial

 noun: Parts of a car topic
the face of a clock or watch, or a similar control on a machine, piece of equipment or vehicle that shows a measurement of time, amount, speed, temperature, etc. an alarm clock with a luminous dial Check the tyre pressure on the dial. Set the dial for the number of copies required. You can tune into our station at 1460 on the radio dial.