cavities
n. countable B2 Upper Intermediate US //ˈkævɪtiz// UK //kˈævɪtiz// cav·i·ties
n. small holes in your teeth caused by decay. You usually need a dentist to fix them with a filling.
n. hollow spaces or pits in the teeth resulting from the progressive decay of enamel and dentin. Often used in the plural when referring to dental health.
The dentist found two small cavities during my checkup.
Eating too many sugary snacks without brushing regularly can lead to painful cavities that require fillings.
While modern fluoridation has reduced the incidence of dental caries, many adults still develop cavities in hard-to-reach areas between their molars.
Usage
Plural form of 'cavity'; in a medical context, it can also refer to any hollow space within the body.