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cavity

A hollow space within the body or an organ; also a hole in a tooth caused by decay.

KAV-ih-tee noun

What it means

The body has large cavities that hold the organs: the cranial cavity (brain), the thoracic cavity (heart and lungs), and the abdominal and pelvic cavities. Smaller cavities include the oral cavity (mouth) and nasal cavity. A dental cavity (caries) is damage to a tooth from bacteria and acid. In tuberculosis, a cavity is a hollow area of destroyed lung tissue.

At a glance

Spanishcavidad; caries (dental)
Also writtencavities

Related terms

plaque

A deposit that builds up on a surface in the body, such as a sticky film of bacteria on teeth or a fatty buildup in an artery wall.

abdominal

Having to do with the abdomen, the part of the body between the chest and the pelvis; the belly.

pleural

Having to do with the pleura, the thin two-layer membrane that covers the lungs and lines the chest wall.

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