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Cavity definition

kăvĭ-tē
cavities
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The definition of a cavity is a hole or hollow place.

An example of a cavity is a hole in a tooth.

noun
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A pitted area in a tooth caused by caries.
noun
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A hole or hollow place.
noun
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A hollow place in a tooth, esp. when caused by decay.
noun
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A hollow area within the body.

A sinus cavity.

noun
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A pitted area in a tooth caused by caries.
noun
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A hollow; a hole.
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A hollow area within the body.
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A pitted area in a tooth caused by caries.
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noun
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A hollow area within the body (such as the sinuses).
noun
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(dentistry) A soft area in a decayed tooth.
noun
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A hollow; a hole.
noun
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A hollow area within the body.

A sinus cavity.

noun
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A natural hollow place within the body.

The abdominal cavity.

noun
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(electronics) A space enclosed by metal and with a rodlike projection in the center, used as a resonator, as with a magnetron to produce electromagnetic waves, esp. microwaves.
noun
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Other Word Forms

Noun

Singular:
cavity
Plural:
cavities

Origin of cavity

  • French cavité from Late Latin cavitās from Latin cavus hollow keuə- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle French cavité, from Late Latin cavitas, from Latin cavus (“hollow”), from Proto-Indo-European *ḱówHwos, from root Proto-Indo-European *ḱówH-

    From Wiktionary

Cavity Sentence Examples

  • These processes stretch across the body cavity to be inserted in the dorsal and ventral middle lines.

  • The sub-umbral cavity (s.c.) functions as a brood-space for the developing embryos, which are set free by rupture of the wall.

  • It is evident that the outer envelope of the gonophore represents the ex-umbral ectoderm (ex.), and that the inner ectoderm lining the cavity represents the sub-umbral ectoderm of the free medusa.

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Words near cavity in the Dictionary