Cavity synonyms

pit

A hole or cavity in the ground

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depression

A geographic area, such as a sinkhole or basin, that is lower than its surroundings.

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alveolus (related)

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annulus (related)

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hollow

A cavity, gap, or space:

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basin

Any shallow, rounded hollow or depression, often containing water, as a pond

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gingival pit

Hollow place in a tooth

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antrum

Either of the sinuses in the bones of the upper jaw, opening into the nasal cavity.

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atrium

A usually skylighted central area, often containing plants, in some modern buildings, especially of a public or commercial nature.

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bag

The amount that a bag can hold.

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bodily cavity

(anatomy) a natural hollow or sinus within the body

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duct (related)

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capillary (related)

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diaphragm (related)

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membrane (related)

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lining (related)

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sheath (related)

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perforation (related)

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trachea (related)

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coil (related)

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septum (related)

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electrode (related)

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pericardium (related)

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dental-caries

The formation of cavities in the teeth by the action of bacteria; tooth decay.

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distal pit

Hollow place in a tooth

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hole (related)

One of the divisions of a golf course, from tee to cup.

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decay (related)

The spontaneous transformation of a relatively unstable particle into a set of new particles. For example, a pion decays spontaneously into a muon and an antineutrino. The decay of heavy or unstable atomic nuclei (such as uranium or carbon-10) into more stable nuclei and emitted particles is called radioactive decay . The study of particle decay is fundamental to subatomic physics.

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bursa

(Anatomy) Any of the many small fluid-filled sacs located at the point where a muscle or tendon slides across bone. These sacs serve to reduce friction between the two moving surfaces.

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cave

A hollow or natural passage under or into the earth, especially one with an opening to the surface.

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cavern

The definition of a cavern is a large cave.

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chamber

One of the legislative bodies in a government where multiple such bodies exist, or a single such body in comparison to others.

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dent

(Informal) A significant, usually diminishing effect or impression:

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excavation

(Uncountable) Archaeological research that unearths buildings, tombs and objects of historical value.

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grotto

A small cave or cavern.

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mine

A large excavation made in the earth, from which to extract metallic ores, coal, precious stones, salt, or certain other minerals

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orifice

A mouth or aperture, as of a tube, pipe, etc.; an opening; as,

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pocket

A small sack or bag.

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sac

A pouch or pouchlike structure in an organism, sometimes filled with fluid.

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sink

A cesspool or sewer

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sinus

Any cavity or hollow formed by a bending or curving

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vacuum

The definition of a vacuum is a space devoid of air or matter, or a tool that uses suction to clean.

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vein

A more or less continuous body of minerals, igneous or sedimentary rock, etc., occupying a fissure or zone, differing in nature from the enclosing rock, and usually deposited from solution by circulating water

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vesicle

(Anatomy) A small sac or cyst or vacuole, especially one containing fluid. A blister formed in or beneath the skin, containing serum. A bleb.

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void

(Fluid mechanics) A pocket of vapour inside a fluid flow, created by cavitation.

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vacuity

Emptiness.