cavity
part of speech
noun (a cavity, cavities)
meaning for a pupil
1) A cavity is a hollow space inside something solid. tree →
2) A cavity is a small hole in a tooth caused by decay. tree →
3) A body cavity is a space inside the body, such as the chest or the mouth. tree →
sense in the lessons
At the dentist a cavity is a hole in your tooth that needs a filling; eating lots of sugar and not brushing can cause cavities. In science, a cavity is any hollow, like the space inside a wall, a rock or the body (the chest cavity holds the heart and lungs). Phrases: «have a cavity», «fill a cavity», «cavity wall», «nasal cavity».
examples
- The dentist found a cavity in my back tooth. tree →
- Brushing twice a day helps stop cavities. tree →
- Sweets and fizzy drinks can cause cavities. tree →
- The heart and lungs sit in the chest cavity. tree →
- The house has cavity walls filled with insulation. tree →
- Water had worn a cavity in the rock. tree →
- A bird nested in a cavity in the old tree. tree →
- No cavities this time — well done! tree →
- Within the cavity lay a sword, with a golden hilt, and a pair of sandals. tree →
note
Countable: one cavity, two cavities (y changes to ies). Stress: CAV-i-ty. A cavity in a tooth does not heal by itself; a dentist fills it. «Cavity» is a more formal word for «hole» or «hollow».
In the corpora
- Bacteria in plaque feed on sugar and make acid, which dissolves enamel and causes tooth decay, a hole called a cavity.
- But germs in the mouth eat sugar left on the teeth and make acid, and the acid makes holes called cavities.
- A hole in a tooth caused by decay is called a cavity.
Trees and pragmatics
Every meaning and example of «cavity» parsed by Mova, each sentence with its dependency tree and frames.