teeth grinding

noun

Pathology.

1. habitual, purposeless clenching and grinding of the teeth, especially during sleep.

Example Sentences

Factors identified included poor hygiene habits such as a lack of brushing and flossing, high levels of sugary sports and fizzy drink consumption, and stress - possibly due to a high-performance environment - which can cause teeth grinding and lead to decay.

From BBC

Scientists also coaxed DNA from the centuries-old skeletons — drilling small samples of bones and teeth, grinding them up into powder, mixing them into a solution and filtering out everything but the human DNA.

From Seattle Times

He could feel “my jaw pulsing and my teeth grinding,” he wrote, as a voice prodded him to pull out his pistol and kill the man.

From New York Times

The last time we rode together I was in tears: sweating, having difficulty breathing, teeth grinding, and terrified about having an accident.

From Washington Post

I couldn’t even ask Lusk about it because, even from my house on Cape Cod, Mass., I could hear his teeth grinding in Indiana.

From Washington Post