1. to grind or gnash the teeth, especially involuntarily during sleep
Usage: medical/dental term; often used in the context of sleep disorders

Examples

• The dentist noticed signs of bruxing on the patient's molars.
• Children sometimes brux their teeth when stressed or anxious.
• He was told he bruxes at night, which is why his jaw aches in the morning.
• Bruxing can wear down tooth enamel over time if left untreated.
• The sleep specialist recommended a night guard to prevent bruxing.