timing belt

plural timing belts

Definition of timing belt

: a belt that connects the camshaft and the crankshaft in a vehicle engine (as in an automobile) and coordinates the opening and closing of the engine's valves Honda recommends that the timing belt be replaced at 105,000 miles.— John Paul The timing belt is a lot smaller and cheaper than a transmission or an engine, but it is an essential car part nonetheless.— Melissa Thompson — compare timing chain

First Known Use of timing belt

1950, in the meaning defined above

Keep scrolling for more

Learn More about timing belt

Time Traveler for timing belt

Time Traveler

The first known use of timing belt was in 1950

See more words from the same year

Statistics for timing belt

Cite this Entry

“Timing belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/timing%20belt. Accessed 22 Sep. 2020.

Comments on timing belt

What made you want to look up timing belt? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!